81861703

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{13807}}^1$

素因数の和:13843

約数の個数: 18

約数和(自身を含む): 104678448

約数和(自身を除く): 22816745

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 5929, 13807, 96649, 151877, 676543, 1063139, 1670647, 7441973, 11694529, 81861703]

約数ペア:

[(1, 81861703), (7, 11694529), (11, 7441973), (49, 1670647), (77, 1063139), (121, 676543), (539, 151877), (847, 96649), (5929, 13807)]