21842400465

素因数分解:

$3^4\times 5^1\times {\mathrm{53931853}}^1$

素因数の和:53931870

約数の個数: 20

約数和(自身を含む): 39154526004

約数和(自身を除く): 17312125539

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 53931853, 161795559, 269659265, 485386677, 808977795, 1456160031, 2426933385, 4368480093, 7280800155, 21842400465]

約数ペア:

[(1, 21842400465), (3, 7280800155), (5, 4368480093), (9, 2426933385), (15, 1456160031), (27, 808977795), (45, 485386677), (81, 269659265), (135, 161795559), (405, 53931853)]