20455815

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43991}}^1$

素因数の和:44030

約数の個数: 16

約数和(自身を含む): 33785856

約数和(自身を除く): 13330041

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 43991, 131973, 219955, 659865, 1363721, 4091163, 6818605, 20455815]

約数ペア:

[(1, 20455815), (3, 6818605), (5, 4091163), (15, 1363721), (31, 659865), (93, 219955), (155, 131973), (465, 43991)]