21293605

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{3739}}^1$

素因数の和:3828

約数の個数: 16

約数和(自身を含む): 27466560

約数和(自身を除く): 6172955

約数列:

[1, 5, 17, 67, 85, 335, 1139, 3739, 5695, 18695, 63563, 250513, 317815, 1252565, 4258721, 21293605]

約数ペア:

[(1, 21293605), (5, 4258721), (17, 1252565), (67, 317815), (85, 250513), (335, 63563), (1139, 18695), (3739, 5695)]