20877585

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13513}}^1$

素因数の和:13624

約数の個数: 16

約数和(自身を含む): 33730944

約数和(自身を除く): 12853359

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 13513, 40539, 67565, 202695, 1391839, 4175517, 6959195, 20877585]

約数ペア:

[(1, 20877585), (3, 6959195), (5, 4175517), (15, 1391839), (103, 202695), (309, 67565), (515, 40539), (1545, 13513)]