21493212

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137777}}^1$

素因数の和:137797

約数の個数: 24

約数和(自身を含む): 54008976

約数和(自身を除く): 32515764

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 137777, 275554, 413331, 551108, 826662, 1653324, 1791101, 3582202, 5373303, 7164404, 10746606, 21493212]

約数ペア:

[(1, 21493212), (2, 10746606), (3, 7164404), (4, 5373303), (6, 3582202), (12, 1791101), (13, 1653324), (26, 826662), (39, 551108), (52, 413331), (78, 275554), (156, 137777)]