20585205

素因数分解:

$3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1097}}^1$

素因数の和:1250

約数の個数: 32

約数和(自身を含む): 36892800

約数和(自身を除く): 16307595

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139, 417, 695, 1097, 1251, 2085, 3291, 3753, 5485, 6255, 9873, 16455, 18765, 29619, 49365, 148095, 152483, 457449, 762415, 1372347, 2287245, 4117041, 6861735, 20585205]

約数ペア:

[(1, 20585205), (3, 6861735), (5, 4117041), (9, 2287245), (15, 1372347), (27, 762415), (45, 457449), (135, 152483), (139, 148095), (417, 49365), (695, 29619), (1097, 18765), (1251, 16455), (2085, 9873), (3291, 6255), (3753, 5485)]