12221678

素因数分解:

$2^1\times 7^2\times {\mathrm{311}}^1\times {\mathrm{401}}^1$

素因数の和:728

約数の個数: 24

約数和(自身を含む): 21447504

約数和(自身を除く): 9225826

約数列:

[1, 2, 7, 14, 49, 98, 311, 401, 622, 802, 2177, 2807, 4354, 5614, 15239, 19649, 30478, 39298, 124711, 249422, 872977, 1745954, 6110839, 12221678]

約数ペア:

[(1, 12221678), (2, 6110839), (7, 1745954), (14, 872977), (49, 249422), (98, 124711), (311, 39298), (401, 30478), (622, 19649), (802, 15239), (2177, 5614), (2807, 4354)]