81397212

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{521777}}^1$

素因数の和:521797

約数の個数: 24

約数和(自身を含む): 204536976

約数和(自身を除く): 123139764

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 521777, 1043554, 1565331, 2087108, 3130662, 6261324, 6783101, 13566202, 20349303, 27132404, 40698606, 81397212]

約数ペア:

[(1, 81397212), (2, 40698606), (3, 27132404), (4, 20349303), (6, 13566202), (12, 6783101), (13, 6261324), (26, 3130662), (39, 2087108), (52, 1565331), (78, 1043554), (156, 521777)]