21662719

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:570

約数の個数: 16

約数和(自身を含む): 24202080

約数和(自身を除く): 2539361

約数列:

[1, 13, 41, 97, 419, 533, 1261, 3977, 5447, 17179, 40643, 51701, 223327, 528359, 1666363, 21662719]

約数ペア:

[(1, 21662719), (13, 1666363), (41, 528359), (97, 223327), (419, 51701), (533, 40643), (1261, 17179), (3977, 5447)]