21341485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12517}}^1$

素因数の和:12564

約数の個数: 16

約数和(自身を含む): 28841472

約数和(自身を除く): 7499987

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 12517, 62585, 137687, 388027, 688435, 1940135, 4268297, 21341485]

約数ペア:

[(1, 21341485), (5, 4268297), (11, 1940135), (31, 688435), (55, 388027), (155, 137687), (341, 62585), (1705, 12517)]