21000819849

素因数分解:

$3^1\times {\mathrm{181}}^1\times {\mathrm{571}}^1\times {\mathrm{67733}}^1$

素因数の和:68488

約数の個数: 16

約数和(自身を含む): 28205521344

約数和(自身を除く): 7204701495

約数列:

[1, 3, 181, 543, 571, 1713, 67733, 103351, 203199, 310053, 12259673, 36779019, 38675543, 116026629, 7000273283, 21000819849]

約数ペア:

[(1, 21000819849), (3, 7000273283), (181, 116026629), (543, 38675543), (571, 36779019), (1713, 12259673), (67733, 310053), (103351, 203199)]