21126595

素因数分解:

$5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{1627}}^1$

素因数の和:1699

約数の個数: 24

約数和(自身を含む): 30065904

約数和(自身を除く): 8939309

約数列:

[1, 5, 7, 35, 49, 53, 245, 265, 371, 1627, 1855, 2597, 8135, 11389, 12985, 56945, 79723, 86231, 398615, 431155, 603617, 3018085, 4225319, 21126595]

約数ペア:

[(1, 21126595), (5, 4225319), (7, 3018085), (35, 603617), (49, 431155), (53, 398615), (245, 86231), (265, 79723), (371, 56945), (1627, 12985), (1855, 11389), (2597, 8135)]