21136575

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{9091}}^1$

素因数の和:9135

約数の個数: 24

約数和(自身を含む): 36077056

約数和(自身を除く): 14940481

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 2325, 9091, 27273, 45455, 136365, 227275, 281821, 681825, 845463, 1409105, 4227315, 7045525, 21136575]

約数ペア:

[(1, 21136575), (3, 7045525), (5, 4227315), (15, 1409105), (25, 845463), (31, 681825), (75, 281821), (93, 227275), (155, 136365), (465, 45455), (775, 27273), (2325, 9091)]