3970421

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 5209344

約数和(自身を除く): 1238923

約数列:

[1, 7, 13, 23, 49, 91, 161, 271, 299, 637, 1127, 1897, 2093, 3523, 6233, 13279, 14651, 24661, 43631, 81029, 172627, 305417, 567203, 3970421]

約数ペア:

[(1, 3970421), (7, 567203), (13, 305417), (23, 172627), (49, 81029), (91, 43631), (161, 24661), (271, 14651), (299, 13279), (637, 6233), (1127, 3523), (1897, 2093)]