20187245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18269}}^1$

素因数の和:18304

約数の個数: 16

約数和(自身を含む): 27624240

約数和(自身を除く): 7436995

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 18269, 91345, 237497, 310573, 1187485, 1552865, 4037449, 20187245]

約数ペア:

[(1, 20187245), (5, 4037449), (13, 1552865), (17, 1187485), (65, 310573), (85, 237497), (221, 91345), (1105, 18269)]