21050917

素因数分解:

${\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 23123520

約数和(自身を除く): 2072603

約数列:

[1, 19, 41, 61, 443, 779, 1159, 2501, 8417, 18163, 27023, 47519, 345097, 513437, 1107943, 21050917]

約数ペア:

[(1, 21050917), (19, 1107943), (41, 513437), (61, 345097), (443, 47519), (779, 27023), (1159, 18163), (2501, 8417)]