20521644

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{11959}}^1$

素因数の和:11990

約数の個数: 48

約数和(自身を含む): 56259840

約数和(自身を除く): 35738196

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716, 11959, 23918, 35877, 47836, 71754, 131549, 143508, 155467, 263098, 310934, 394647, 466401, 526196, 621868, 789294, 932802, 1578588, 1710137, 1865604, 3420274, 5130411, 6840548, 10260822, 20521644]

約数ペア:

[(1, 20521644), (2, 10260822), (3, 6840548), (4, 5130411), (6, 3420274), (11, 1865604), (12, 1710137), (13, 1578588), (22, 932802), (26, 789294), (33, 621868), (39, 526196), (44, 466401), (52, 394647), (66, 310934), (78, 263098), (132, 155467), (143, 143508), (156, 131549), (286, 71754), (429, 47836), (572, 35877), (858, 23918), (1716, 11959)]