20100997

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:472

約数の個数: 16

約数和(自身を含む): 23511040

約数和(自身を除く): 3410043

約数列:

[1, 7, 79, 163, 223, 553, 1141, 1561, 12877, 17617, 36349, 90139, 123319, 254443, 2871571, 20100997]

約数ペア:

[(1, 20100997), (7, 2871571), (79, 254443), (163, 123319), (223, 90139), (553, 36349), (1141, 17617), (1561, 12877)]