20903688

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1$

素因数の和:1019

約数の個数: 96

約数和(自身を含む): 63685440

約数和(自身を除く): 42781752

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 23, 24, 26, 36, 39, 46, 52, 69, 72, 78, 92, 104, 117, 138, 156, 184, 207, 234, 276, 299, 312, 414, 468, 552, 598, 828, 897, 936, 971, 1196, 1656, 1794, 1942, 2392, 2691, 2913, 3588, 3884, 5382, 5826, 7176, 7768, 8739, 10764, 11652, 12623, 17478, 21528, 22333, 23304, 25246, 34956, 37869, 44666, 50492, 66999, 69912, 75738, 89332, 100984, 113607, 133998, 151476, 178664, 200997, 227214, 267996, 290329, 302952, 401994, 454428, 535992, 580658, 803988, 870987, 908856, 1161316, 1607976, 1741974, 2322632, 2612961, 3483948, 5225922, 6967896, 10451844, 20903688]

約数ペア:

[(1, 20903688), (2, 10451844), (3, 6967896), (4, 5225922), (6, 3483948), (8, 2612961), (9, 2322632), (12, 1741974), (13, 1607976), (18, 1161316), (23, 908856), (24, 870987), (26, 803988), (36, 580658), (39, 535992), (46, 454428), (52, 401994), (69, 302952), (72, 290329), (78, 267996), (92, 227214), (104, 200997), (117, 178664), (138, 151476), (156, 133998), (184, 113607), (207, 100984), (234, 89332), (276, 75738), (299, 69912), (312, 66999), (414, 50492), (468, 44666), (552, 37869), (598, 34956), (828, 25246), (897, 23304), (936, 22333), (971, 21528), (1196, 17478), (1656, 12623), (1794, 11652), (1942, 10764), (2392, 8739), (2691, 7768), (2913, 7176), (3588, 5826), (3884, 5382)]