39917205

素因数分解:

$3^4\times 5^1\times {\mathrm{98561}}^1$

素因数の和:98578

約数の個数: 20

約数和(自身を含む): 71556012

約数和(自身を除く): 31638807

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 98561, 295683, 492805, 887049, 1478415, 2661147, 4435245, 7983441, 13305735, 39917205]

約数ペア:

[(1, 39917205), (3, 13305735), (5, 7983441), (9, 4435245), (15, 2661147), (27, 1478415), (45, 887049), (81, 492805), (135, 295683), (405, 98561)]