21147204

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135559}}^1$

素因数の和:135579

約数の個数: 24

約数和(自身を含む): 53139520

約数和(自身を除く): 31992316

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135559, 271118, 406677, 542236, 813354, 1626708, 1762267, 3524534, 5286801, 7049068, 10573602, 21147204]

約数ペア:

[(1, 21147204), (2, 10573602), (3, 7049068), (4, 5286801), (6, 3524534), (12, 1762267), (13, 1626708), (26, 813354), (39, 542236), (52, 406677), (78, 271118), (156, 135559)]