12223953

素因数分解:

$3^4\times 7^1\times {\mathrm{21559}}^1$

素因数の和:21578

約数の個数: 20

約数和(自身を含む): 20870080

約数和(自身を除く): 8646127

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 21559, 64677, 150913, 194031, 452739, 582093, 1358217, 1746279, 4074651, 12223953]

約数ペア:

[(1, 12223953), (3, 4074651), (7, 1746279), (9, 1358217), (21, 582093), (27, 452739), (63, 194031), (81, 150913), (189, 64677), (567, 21559)]