31357221

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21031}}^1$

素因数の和:21112

約数の個数: 16

約数和(自身を含む): 48457728

約数和(自身を除く): 17100507

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 21031, 63093, 147217, 441651, 1493201, 4479603, 10452407, 31357221]

約数ペア:

[(1, 31357221), (3, 10452407), (7, 4479603), (21, 1493201), (71, 441651), (213, 147217), (497, 63093), (1491, 21031)]