18621169

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:460

約数の個数: 16

約数和(自身を含む): 21790720

約数和(自身を除く): 3169551

約数列:

[1, 7, 79, 151, 223, 553, 1057, 1561, 11929, 17617, 33673, 83503, 123319, 235711, 2660167, 18621169]

約数ペア:

[(1, 18621169), (7, 2660167), (79, 235711), (151, 123319), (223, 83503), (553, 33673), (1057, 17617), (1561, 11929)]