2181816

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:75

約数の個数: 160

約数和(自身を含む): 7724640

約数和(自身を除く): 5542824

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 27, 28, 36, 37, 39, 42, 52, 54, 56, 63, 72, 74, 78, 81, 84, 91, 104, 108, 111, 117, 126, 148, 156, 162, 168, 182, 189, 216, 222, 234, 252, 259, 273, 296, 312, 324, 333, 351, 364, 378, 444, 468, 481, 504, 518, 546, 567, 648, 666, 702, 728, 756, 777, 819, 888, 936, 962, 999, 1036, 1053, 1092, 1134, 1332, 1404, 1443, 1512, 1554, 1638, 1924, 1998, 2072, 2106, 2184, 2268, 2331, 2457, 2664, 2808, 2886, 2997, 3108, 3276, 3367, 3848, 3996, 4212, 4329, 4536, 4662, 4914, 5772, 5994, 6216, 6552, 6734, 6993, 7371, 7992, 8424, 8658, 9324, 9828, 10101, 11544, 11988, 12987, 13468, 13986, 14742, 17316, 18648, 19656, 20202, 20979, 23976, 25974, 26936, 27972, 29484, 30303, 34632, 38961, 40404, 41958, 51948, 55944, 58968, 60606, 77922, 80808, 83916, 90909, 103896, 121212, 155844, 167832, 181818, 242424, 272727, 311688, 363636, 545454, 727272, 1090908, 2181816]

約数ペア:

[(1, 2181816), (2, 1090908), (3, 727272), (4, 545454), (6, 363636), (7, 311688), (8, 272727), (9, 242424), (12, 181818), (13, 167832), (14, 155844), (18, 121212), (21, 103896), (24, 90909), (26, 83916), (27, 80808), (28, 77922), (36, 60606), (37, 58968), (39, 55944), (42, 51948), (52, 41958), (54, 40404), (56, 38961), (63, 34632), (72, 30303), (74, 29484), (78, 27972), (81, 26936), (84, 25974), (91, 23976), (104, 20979), (108, 20202), (111, 19656), (117, 18648), (126, 17316), (148, 14742), (156, 13986), (162, 13468), (168, 12987), (182, 11988), (189, 11544), (216, 10101), (222, 9828), (234, 9324), (252, 8658), (259, 8424), (273, 7992), (296, 7371), (312, 6993), (324, 6734), (333, 6552), (351, 6216), (364, 5994), (378, 5772), (444, 4914), (468, 4662), (481, 4536), (504, 4329), (518, 4212), (546, 3996), (567, 3848), (648, 3367), (666, 3276), (702, 3108), (728, 2997), (756, 2886), (777, 2808), (819, 2664), (888, 2457), (936, 2331), (962, 2268), (999, 2184), (1036, 2106), (1053, 2072), (1092, 1998), (1134, 1924), (1332, 1638), (1404, 1554), (1443, 1512)]