21393472

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:347

約数の個数: 56

約数和(自身を含む): 45061632

約数和(自身を除く): 23668160

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 64, 82, 124, 164, 248, 263, 328, 496, 526, 656, 992, 1052, 1271, 1312, 1984, 2104, 2542, 2624, 4208, 5084, 8153, 8416, 10168, 10783, 16306, 16832, 20336, 21566, 32612, 40672, 43132, 65224, 81344, 86264, 130448, 172528, 260896, 334273, 345056, 521792, 668546, 690112, 1337092, 2674184, 5348368, 10696736, 21393472]

約数ペア:

[(1, 21393472), (2, 10696736), (4, 5348368), (8, 2674184), (16, 1337092), (31, 690112), (32, 668546), (41, 521792), (62, 345056), (64, 334273), (82, 260896), (124, 172528), (164, 130448), (248, 86264), (263, 81344), (328, 65224), (496, 43132), (526, 40672), (656, 32612), (992, 21566), (1052, 20336), (1271, 16832), (1312, 16306), (1984, 10783), (2104, 10168), (2542, 8416), (2624, 8153), (4208, 5084)]