20478003

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{75011}}^1$

素因数の和:75034

約数の個数: 16

約数和(自身を含む): 33605376

約数和(自身を除く): 13127373

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 75011, 225033, 525077, 975143, 1575231, 2925429, 6826001, 20478003]

約数ペア:

[(1, 20478003), (3, 6826001), (7, 2925429), (13, 1575231), (21, 975143), (39, 525077), (91, 225033), (273, 75011)]