21221577

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5851}}^1$

素因数の和:5901

約数の個数: 24

約数和(自身を含む): 34082048

約数和(自身を除く): 12860471

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 5851, 17553, 52659, 76063, 181381, 228189, 544143, 684567, 1632429, 2357953, 7073859, 21221577]

約数ペア:

[(1, 21221577), (3, 7073859), (9, 2357953), (13, 1632429), (31, 684567), (39, 544143), (93, 228189), (117, 181381), (279, 76063), (403, 52659), (1209, 17553), (3627, 5851)]