21395628

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{9743}}^1$

素因数の和:9814

約数の個数: 36

約数和(自身を含む): 54975648

約数和(自身を除く): 33580020

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 9743, 19486, 29229, 38972, 58458, 87687, 116916, 175374, 350748, 594323, 1188646, 1782969, 2377292, 3565938, 5348907, 7131876, 10697814, 21395628]

約数ペア:

[(1, 21395628), (2, 10697814), (3, 7131876), (4, 5348907), (6, 3565938), (9, 2377292), (12, 1782969), (18, 1188646), (36, 594323), (61, 350748), (122, 175374), (183, 116916), (244, 87687), (366, 58458), (549, 38972), (732, 29229), (1098, 19486), (2196, 9743)]