21955271

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{757}}^1$

素因数の和:890

約数の個数: 16

約数和(自身を含む): 24959424

約数和(自身を除く): 3004153

約数列:

[1, 13, 23, 97, 299, 757, 1261, 2231, 9841, 17411, 29003, 73429, 226343, 954577, 1688867, 21955271]

約数ペア:

[(1, 21955271), (13, 1688867), (23, 954577), (97, 226343), (299, 73429), (757, 29003), (1261, 17411), (2231, 9841)]