9720207

素因数分解:

$3^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{557}}^1$

素因数の和:847

約数の個数: 24

約数和(自身を含む): 16132896

約数和(自身を除く): 6412689

約数列:

[1, 3, 7, 9, 21, 63, 277, 557, 831, 1671, 1939, 2493, 3899, 5013, 5817, 11697, 17451, 35091, 154289, 462867, 1080023, 1388601, 3240069, 9720207]

約数ペア:

[(1, 9720207), (3, 3240069), (7, 1388601), (9, 1080023), (21, 462867), (63, 154289), (277, 35091), (557, 17451), (831, 11697), (1671, 5817), (1939, 5013), (2493, 3899)]