21300355

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2069}}^1$

素因数の和:2174

約数の個数: 16

約数和(自身を含む): 26827200

約数和(自身を除く): 5526845

約数列:

[1, 5, 29, 71, 145, 355, 2059, 2069, 10295, 10345, 60001, 146899, 300005, 734495, 4260071, 21300355]

約数ペア:

[(1, 21300355), (5, 4260071), (29, 734495), (71, 300005), (145, 146899), (355, 60001), (2059, 10345), (2069, 10295)]