21663759

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{15013}}^1$

素因数の和:15066

約数の個数: 16

約数和(自身を含む): 31949792

約数和(自身を除く): 10286033

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 15013, 45039, 195169, 555481, 585507, 1666443, 7221253, 21663759]

約数ペア:

[(1, 21663759), (3, 7221253), (13, 1666443), (37, 585507), (39, 555481), (111, 195169), (481, 45039), (1443, 15013)]