18905003

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{653}}^1$

素因数の和:814

約数の個数: 16

約数和(自身を含む): 21754656

約数和(自身を除く): 2849653

約数列:

[1, 13, 17, 131, 221, 653, 1703, 2227, 8489, 11101, 28951, 85543, 144313, 1112059, 1454231, 18905003]

約数ペア:

[(1, 18905003), (13, 1454231), (17, 1112059), (131, 144313), (221, 85543), (653, 28951), (1703, 11101), (2227, 8489)]