20971896

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 62380800

約数和(自身を除く): 41408904

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 19, 22, 24, 33, 37, 38, 44, 57, 66, 74, 76, 88, 111, 113, 114, 132, 148, 152, 209, 222, 226, 228, 264, 296, 339, 407, 418, 444, 452, 456, 627, 678, 703, 814, 836, 888, 904, 1221, 1243, 1254, 1356, 1406, 1628, 1672, 2109, 2147, 2442, 2486, 2508, 2712, 2812, 3256, 3729, 4181, 4218, 4294, 4884, 4972, 5016, 5624, 6441, 7458, 7733, 8362, 8436, 8588, 9768, 9944, 12543, 12882, 14916, 15466, 16724, 16872, 17176, 23199, 23617, 25086, 25764, 29832, 30932, 33448, 45991, 46398, 47234, 50172, 51528, 61864, 70851, 79439, 91982, 92796, 94468, 100344, 137973, 141702, 158878, 183964, 185592, 188936, 238317, 275946, 283404, 317756, 367928, 476634, 551892, 566808, 635512, 873829, 953268, 1103784, 1747658, 1906536, 2621487, 3495316, 5242974, 6990632, 10485948, 20971896]

約数ペア:

[(1, 20971896), (2, 10485948), (3, 6990632), (4, 5242974), (6, 3495316), (8, 2621487), (11, 1906536), (12, 1747658), (19, 1103784), (22, 953268), (24, 873829), (33, 635512), (37, 566808), (38, 551892), (44, 476634), (57, 367928), (66, 317756), (74, 283404), (76, 275946), (88, 238317), (111, 188936), (113, 185592), (114, 183964), (132, 158878), (148, 141702), (152, 137973), (209, 100344), (222, 94468), (226, 92796), (228, 91982), (264, 79439), (296, 70851), (339, 61864), (407, 51528), (418, 50172), (444, 47234), (452, 46398), (456, 45991), (627, 33448), (678, 30932), (703, 29832), (814, 25764), (836, 25086), (888, 23617), (904, 23199), (1221, 17176), (1243, 16872), (1254, 16724), (1356, 15466), (1406, 14916), (1628, 12882), (1672, 12543), (2109, 9944), (2147, 9768), (2442, 8588), (2486, 8436), (2508, 8362), (2712, 7733), (2812, 7458), (3256, 6441), (3729, 5624), (4181, 5016), (4218, 4972), (4294, 4884)]