247989147

素因数分解:

$3^1\times 7^2\times {\mathrm{1279}}^1\times {\mathrm{1319}}^1$

素因数の和:2615

約数の個数: 24

約数和(自身を含む): 385228800

約数和(自身を除く): 137239653

約数列:

[1, 3, 7, 21, 49, 147, 1279, 1319, 3837, 3957, 8953, 9233, 26859, 27699, 62671, 64631, 188013, 193893, 1687001, 5061003, 11809007, 35427021, 82663049, 247989147]

約数ペア:

[(1, 247989147), (3, 82663049), (7, 35427021), (21, 11809007), (49, 5061003), (147, 1687001), (1279, 193893), (1319, 188013), (3837, 64631), (3957, 62671), (8953, 27699), (9233, 26859)]