21776607

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{11689}}^1$

素因数の和:11724

約数の個数: 20

約数和(自身を含む): 33947760

約数和(自身を除く): 12171153

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 11689, 35067, 105201, 268847, 315603, 806541, 946809, 2419623, 7258869, 21776607]

約数ペア:

[(1, 21776607), (3, 7258869), (9, 2419623), (23, 946809), (27, 806541), (69, 315603), (81, 268847), (207, 105201), (621, 35067), (1863, 11689)]