201945709

素因数分解:

$7^4\times {\mathrm{241}}^1\times {\mathrm{349}}^1$

素因数の和:618

約数の個数: 20

約数和(自身を含む): 237244700

約数和(自身を除く): 35298991

約数列:

[1, 7, 49, 241, 343, 349, 1687, 2401, 2443, 11809, 17101, 82663, 84109, 119707, 578641, 588763, 837949, 4121341, 28849387, 201945709]

約数ペア:

[(1, 201945709), (7, 28849387), (49, 4121341), (241, 837949), (343, 588763), (349, 578641), (1687, 119707), (2401, 84109), (2443, 82663), (11809, 17101)]