21624057

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{677}}^1$

素因数の和:719

約数の個数: 48

約数和(自身を含む): 39703680

約数和(自身を除く): 18079623

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 169, 189, 273, 351, 507, 677, 819, 1183, 1521, 2031, 2457, 3549, 4563, 4739, 6093, 8801, 10647, 14217, 18279, 26403, 31941, 42651, 61607, 79209, 114413, 127953, 184821, 237627, 343239, 554463, 800891, 1029717, 1663389, 2402673, 3089151, 7208019, 21624057]

約数ペア:

[(1, 21624057), (3, 7208019), (7, 3089151), (9, 2402673), (13, 1663389), (21, 1029717), (27, 800891), (39, 554463), (63, 343239), (91, 237627), (117, 184821), (169, 127953), (189, 114413), (273, 79209), (351, 61607), (507, 42651), (677, 31941), (819, 26403), (1183, 18279), (1521, 14217), (2031, 10647), (2457, 8801), (3549, 6093), (4563, 4739)]