18260721

素因数分解:

$3^6\times {\mathrm{37}}^1\times {\mathrm{677}}^1$

素因数の和:732

約数の個数: 28

約数和(自身を含む): 28160052

約数和(自身を除く): 9899331

約数列:

[1, 3, 9, 27, 37, 81, 111, 243, 333, 677, 729, 999, 2031, 2997, 6093, 8991, 18279, 25049, 26973, 54837, 75147, 164511, 225441, 493533, 676323, 2028969, 6086907, 18260721]

約数ペア:

[(1, 18260721), (3, 6086907), (9, 2028969), (27, 676323), (37, 493533), (81, 225441), (111, 164511), (243, 75147), (333, 54837), (677, 26973), (729, 25049), (999, 18279), (2031, 8991), (2997, 6093)]