21777717

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{18013}}^1$

素因数の和:18060

約数の個数: 16

約数和(自身を含む): 32281088

約数和(自身を除く): 10503371

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 18013, 54039, 234169, 558403, 702507, 1675209, 7259239, 21777717]

約数ペア:

[(1, 21777717), (3, 7259239), (13, 1675209), (31, 702507), (39, 558403), (93, 234169), (403, 54039), (1209, 18013)]