21030612

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{769}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 51226560

約数和(自身を除く): 30195948

約数列:

[1, 2, 3, 4, 6, 12, 43, 53, 86, 106, 129, 159, 172, 212, 258, 318, 516, 636, 769, 1538, 2279, 2307, 3076, 4558, 4614, 6837, 9116, 9228, 13674, 27348, 33067, 40757, 66134, 81514, 99201, 122271, 132268, 163028, 198402, 244542, 396804, 489084, 1752551, 3505102, 5257653, 7010204, 10515306, 21030612]

約数ペア:

[(1, 21030612), (2, 10515306), (3, 7010204), (4, 5257653), (6, 3505102), (12, 1752551), (43, 489084), (53, 396804), (86, 244542), (106, 198402), (129, 163028), (159, 132268), (172, 122271), (212, 99201), (258, 81514), (318, 66134), (516, 40757), (636, 33067), (769, 27348), (1538, 13674), (2279, 9228), (2307, 9116), (3076, 6837), (4558, 4614)]