64691561

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{1481}}^1$

素因数の和:1541

約数の個数: 18

約数和(自身を含む): 75097386

約数和(自身を除く): 10405825

約数列:

[1, 11, 19, 121, 209, 361, 1481, 2299, 3971, 16291, 28139, 43681, 179201, 309529, 534641, 3404819, 5881051, 64691561]

約数ペア:

[(1, 64691561), (11, 5881051), (19, 3404819), (121, 534641), (209, 309529), (361, 179201), (1481, 43681), (2299, 28139), (3971, 16291)]