19972008

素因数分解:

$2^3\times 3^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:86

約数の個数: 240

約数和(自身を含む): 70763220

約数和(自身を除く): 50791212

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 17, 18, 21, 24, 27, 28, 34, 36, 37, 42, 49, 51, 54, 56, 63, 68, 72, 74, 81, 84, 98, 102, 108, 111, 119, 126, 136, 147, 148, 153, 162, 168, 189, 196, 204, 216, 222, 238, 252, 259, 294, 296, 306, 324, 333, 357, 378, 392, 408, 441, 444, 459, 476, 504, 518, 567, 588, 612, 629, 648, 666, 714, 756, 777, 833, 882, 888, 918, 952, 999, 1036, 1071, 1134, 1176, 1224, 1258, 1323, 1332, 1377, 1428, 1512, 1554, 1666, 1764, 1813, 1836, 1887, 1998, 2072, 2142, 2268, 2331, 2499, 2516, 2646, 2664, 2754, 2856, 2997, 3108, 3213, 3332, 3528, 3626, 3672, 3774, 3969, 3996, 4284, 4403, 4536, 4662, 4998, 5032, 5292, 5439, 5508, 5661, 5994, 6216, 6426, 6664, 6993, 7252, 7497, 7548, 7938, 7992, 8568, 8806, 9324, 9639, 9996, 10584, 10878, 11016, 11322, 11988, 12852, 13209, 13986, 14504, 14994, 15096, 15876, 16317, 16983, 17612, 18648, 19278, 19992, 20979, 21756, 22491, 22644, 23976, 25704, 26418, 27972, 29988, 30821, 31752, 32634, 33966, 35224, 38556, 39627, 41958, 43512, 44982, 45288, 48951, 50949, 52836, 55944, 59976, 61642, 65268, 67473, 67932, 77112, 79254, 83916, 89964, 92463, 97902, 101898, 105672, 118881, 123284, 130536, 134946, 135864, 146853, 158508, 167832, 179928, 184926, 195804, 203796, 237762, 246568, 269892, 277389, 293706, 317016, 356643, 369852, 391608, 407592, 475524, 539784, 554778, 587412, 713286, 739704, 832167, 951048, 1109556, 1174824, 1426572, 1664334, 2219112, 2496501, 2853144, 3328668, 4993002, 6657336, 9986004, 19972008]

約数ペア:

[(1, 19972008), (2, 9986004), (3, 6657336), (4, 4993002), (6, 3328668), (7, 2853144), (8, 2496501), (9, 2219112), (12, 1664334), (14, 1426572), (17, 1174824), (18, 1109556), (21, 951048), (24, 832167), (27, 739704), (28, 713286), (34, 587412), (36, 554778), (37, 539784), (42, 475524), (49, 407592), (51, 391608), (54, 369852), (56, 356643), (63, 317016), (68, 293706), (72, 277389), (74, 269892), (81, 246568), (84, 237762), (98, 203796), (102, 195804), (108, 184926), (111, 179928), (119, 167832), (126, 158508), (136, 146853), (147, 135864), (148, 134946), (153, 130536), (162, 123284), (168, 118881), (189, 105672), (196, 101898), (204, 97902), (216, 92463), (222, 89964), (238, 83916), (252, 79254), (259, 77112), (294, 67932), (296, 67473), (306, 65268), (324, 61642), (333, 59976), (357, 55944), (378, 52836), (392, 50949), (408, 48951), (441, 45288), (444, 44982), (459, 43512), (476, 41958), (504, 39627), (518, 38556), (567, 35224), (588, 33966), (612, 32634), (629, 31752), (648, 30821), (666, 29988), (714, 27972), (756, 26418), (777, 25704), (833, 23976), (882, 22644), (888, 22491), (918, 21756), (952, 20979), (999, 19992), (1036, 19278), (1071, 18648), (1134, 17612), (1176, 16983), (1224, 16317), (1258, 15876), (1323, 15096), (1332, 14994), (1377, 14504), (1428, 13986), (1512, 13209), (1554, 12852), (1666, 11988), (1764, 11322), (1813, 11016), (1836, 10878), (1887, 10584), (1998, 9996), (2072, 9639), (2142, 9324), (2268, 8806), (2331, 8568), (2499, 7992), (2516, 7938), (2646, 7548), (2664, 7497), (2754, 7252), (2856, 6993), (2997, 6664), (3108, 6426), (3213, 6216), (3332, 5994), (3528, 5661), (3626, 5508), (3672, 5439), (3774, 5292), (3969, 5032), (3996, 4998), (4284, 4662), (4403, 4536)]