21244565

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{1979}}^1$

素因数の和:2116

約数の個数: 16

約数和(自身を含む): 27086400

約数和(自身を除く): 5841835

約数列:

[1, 5, 19, 95, 113, 565, 1979, 2147, 9895, 10735, 37601, 188005, 223627, 1118135, 4248913, 21244565]

約数ペア:

[(1, 21244565), (5, 4248913), (19, 1118135), (95, 223627), (113, 188005), (565, 37601), (1979, 10735), (2147, 9895)]