31021431

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{7001}}^1$

素因数の和:7222

約数の個数: 16

約数和(自身を含む): 47501568

約数和(自身を除く): 16480137

約数列:

[1, 3, 7, 21, 211, 633, 1477, 4431, 7001, 21003, 49007, 147021, 1477211, 4431633, 10340477, 31021431]

約数ペア:

[(1, 31021431), (3, 10340477), (7, 4431633), (21, 1477211), (211, 147021), (633, 49007), (1477, 21003), (4431, 7001)]