21080801408

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{21031}}^1$

素因数の和:21277

約数の個数: 64

約数和(自身を含む): 43248522240

約数和(自身を除く): 22167720832

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 191, 328, 382, 656, 764, 1312, 1528, 2624, 3056, 5248, 6112, 7831, 12224, 15662, 21031, 24448, 31324, 42062, 62648, 84124, 125296, 168248, 250592, 336496, 501184, 672992, 862271, 1002368, 1345984, 1724542, 2691968, 3449084, 4016921, 6898168, 8033842, 13796336, 16067684, 27592672, 32135368, 55185344, 64270736, 110370688, 128541472, 164693761, 257082944, 329387522, 514165888, 658775044, 1317550088, 2635100176, 5270200352, 10540400704, 21080801408]

約数ペア:

[(1, 21080801408), (2, 10540400704), (4, 5270200352), (8, 2635100176), (16, 1317550088), (32, 658775044), (41, 514165888), (64, 329387522), (82, 257082944), (128, 164693761), (164, 128541472), (191, 110370688), (328, 64270736), (382, 55185344), (656, 32135368), (764, 27592672), (1312, 16067684), (1528, 13796336), (2624, 8033842), (3056, 6898168), (5248, 4016921), (6112, 3449084), (7831, 2691968), (12224, 1724542), (15662, 1345984), (21031, 1002368), (24448, 862271), (31324, 672992), (42062, 501184), (62648, 336496), (84124, 250592), (125296, 168248)]