21631831

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{4129}}^1$

素因数の和:4186

約数の個数: 12

約数和(自身を含む): 24185280

約数和(自身を除く): 2553449

約数列:

[1, 13, 31, 169, 403, 4129, 5239, 53677, 127999, 697801, 1663987, 21631831]

約数ペア:

[(1, 21631831), (13, 1663987), (31, 697801), (169, 127999), (403, 53677), (4129, 5239)]