20531475

素因数分解:

$3^4\times 5^2\times {\mathrm{10139}}^1$

素因数の和:10161

約数の個数: 30

約数和(自身を含む): 38035140

約数和(自身を除く): 17503665

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10139, 30417, 50695, 91251, 152085, 253475, 273753, 456255, 760425, 821259, 1368765, 2281275, 4106295, 6843825, 20531475]

約数ペア:

[(1, 20531475), (3, 6843825), (5, 4106295), (9, 2281275), (15, 1368765), (25, 821259), (27, 760425), (45, 456255), (75, 273753), (81, 253475), (135, 152085), (225, 91251), (405, 50695), (675, 30417), (2025, 10139)]