21357984

素因数分解:

$2^5\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{569}}^1$

素因数の和:622

約数の個数: 96

約数和(自身を含む): 62052480

約数和(自身を除く): 40694496

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 23, 24, 32, 34, 46, 48, 51, 68, 69, 92, 96, 102, 136, 138, 184, 204, 272, 276, 368, 391, 408, 544, 552, 569, 736, 782, 816, 1104, 1138, 1173, 1564, 1632, 1707, 2208, 2276, 2346, 3128, 3414, 4552, 4692, 6256, 6828, 9104, 9384, 9673, 12512, 13087, 13656, 18208, 18768, 19346, 26174, 27312, 29019, 37536, 38692, 39261, 52348, 54624, 58038, 77384, 78522, 104696, 116076, 154768, 157044, 209392, 222479, 232152, 309536, 314088, 418784, 444958, 464304, 628176, 667437, 889916, 928608, 1256352, 1334874, 1779832, 2669748, 3559664, 5339496, 7119328, 10678992, 21357984]

約数ペア:

[(1, 21357984), (2, 10678992), (3, 7119328), (4, 5339496), (6, 3559664), (8, 2669748), (12, 1779832), (16, 1334874), (17, 1256352), (23, 928608), (24, 889916), (32, 667437), (34, 628176), (46, 464304), (48, 444958), (51, 418784), (68, 314088), (69, 309536), (92, 232152), (96, 222479), (102, 209392), (136, 157044), (138, 154768), (184, 116076), (204, 104696), (272, 78522), (276, 77384), (368, 58038), (391, 54624), (408, 52348), (544, 39261), (552, 38692), (569, 37536), (736, 29019), (782, 27312), (816, 26174), (1104, 19346), (1138, 18768), (1173, 18208), (1564, 13656), (1632, 13087), (1707, 12512), (2208, 9673), (2276, 9384), (2346, 9104), (3128, 6828), (3414, 6256), (4552, 4692)]