691636

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{1429}}^1$

素因数の和:1455

約数の個数: 18

約数和(自身を含む): 1331330

約数和(自身を除く): 639694

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1429, 2858, 5716, 15719, 31438, 62876, 172909, 345818, 691636]

約数ペア:

[(1, 691636), (2, 345818), (4, 172909), (11, 62876), (22, 31438), (44, 15719), (121, 5716), (242, 2858), (484, 1429)]