64913961

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71887}}^1$

素因数の和:71940

約数の個数: 16

約数和(自身を含む): 101218304

約数和(自身を除く): 36304343

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 71887, 215661, 503209, 1509627, 3091141, 9273423, 21637987, 64913961]

約数ペア:

[(1, 64913961), (3, 21637987), (7, 9273423), (21, 3091141), (43, 1509627), (129, 503209), (301, 215661), (903, 71887)]