21266475652

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{659}}^1\times {\mathrm{474571}}^1$

素因数の和:475251

約数の個数: 24

約数和(自身を含む): 39465407520

約数和(自身を除く): 18198931868

約数列:

[1, 2, 4, 17, 34, 68, 659, 1318, 2636, 11203, 22406, 44812, 474571, 949142, 1898284, 8067707, 16135414, 32270828, 312742289, 625484578, 1250969156, 5316618913, 10633237826, 21266475652]

約数ペア:

[(1, 21266475652), (2, 10633237826), (4, 5316618913), (17, 1250969156), (34, 625484578), (68, 312742289), (659, 32270828), (1318, 16135414), (2636, 8067707), (11203, 1898284), (22406, 949142), (44812, 474571)]