197888913

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{66029}}^1$

素因数の和:66078

約数の個数: 20

約数和(自身を含む): 303605940

約数和(自身を除く): 105717027

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 66029, 198087, 594261, 1782783, 2443073, 5348349, 7329219, 21987657, 65962971, 197888913]

約数ペア:

[(1, 197888913), (3, 65962971), (9, 21987657), (27, 7329219), (37, 5348349), (81, 2443073), (111, 1782783), (333, 594261), (999, 198087), (2997, 66029)]