666649197

素因数分解:

$3^4\times {\mathrm{521}}^1\times {\mathrm{15797}}^1$

素因数の和:16330

約数の個数: 20

約数和(自身を含む): 997833276

約数和(自身を除く): 331184079

約数列:

[1, 3, 9, 27, 81, 521, 1563, 4689, 14067, 15797, 42201, 47391, 142173, 426519, 1279557, 8230237, 24690711, 74072133, 222216399, 666649197]

約数ペア:

[(1, 666649197), (3, 222216399), (9, 74072133), (27, 24690711), (81, 8230237), (521, 1279557), (1563, 426519), (4689, 142173), (14067, 47391), (15797, 42201)]