21720793808

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6255989}}^1$

素因数の和:6256035

約数の個数: 40

約数和(自身を含む): 49647536640

約数和(自身を除く): 27926742832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 6255989, 12511978, 25023956, 43791923, 50047912, 87583846, 100095824, 175167692, 193935659, 350335384, 387871318, 700670768, 775742636, 1357549613, 1551485272, 2715099226, 3102970544, 5430198452, 10860396904, 21720793808]

約数ペア:

[(1, 21720793808), (2, 10860396904), (4, 5430198452), (7, 3102970544), (8, 2715099226), (14, 1551485272), (16, 1357549613), (28, 775742636), (31, 700670768), (56, 387871318), (62, 350335384), (112, 193935659), (124, 175167692), (217, 100095824), (248, 87583846), (434, 50047912), (496, 43791923), (868, 25023956), (1736, 12511978), (3472, 6255989)]