30991995

素因数分解:

$3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{4561}}^1$

素因数の和:4723

約数の個数: 24

約数和(自身を含む): 54087072

約数和(自身を除く): 23095077

約数列:

[1, 3, 5, 9, 15, 45, 151, 453, 755, 1359, 2265, 4561, 6795, 13683, 22805, 41049, 68415, 205245, 688711, 2066133, 3443555, 6198399, 10330665, 30991995]

約数ペア:

[(1, 30991995), (3, 10330665), (5, 6198399), (9, 3443555), (15, 2066133), (45, 688711), (151, 205245), (453, 68415), (755, 41049), (1359, 22805), (2265, 13683), (4561, 6795)]