21025524

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2543}}^1$

素因数の和:2616

約数の個数: 48

約数和(自身を含む): 53851392

約数和(自身を除く): 32825868

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2543, 2756, 4134, 5086, 7629, 8268, 10172, 15258, 30516, 33059, 66118, 99177, 132236, 134779, 198354, 269558, 396708, 404337, 539116, 808674, 1617348, 1752127, 3504254, 5256381, 7008508, 10512762, 21025524]

約数ペア:

[(1, 21025524), (2, 10512762), (3, 7008508), (4, 5256381), (6, 3504254), (12, 1752127), (13, 1617348), (26, 808674), (39, 539116), (52, 404337), (53, 396708), (78, 269558), (106, 198354), (156, 134779), (159, 132236), (212, 99177), (318, 66118), (636, 33059), (689, 30516), (1378, 15258), (2067, 10172), (2543, 8268), (2756, 7629), (4134, 5086)]