20158201959

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2750471}}^1$

素因数の和:2750830

約数の個数: 16

約数和(自身を含む): 30805286400

約数和(自身を除く): 10647084441

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 7329, 2750471, 8251413, 19253297, 57759891, 959914379, 2879743137, 6719400653, 20158201959]

約数ペア:

[(1, 20158201959), (3, 6719400653), (7, 2879743137), (21, 959914379), (349, 57759891), (1047, 19253297), (2443, 8251413), (7329, 2750471)]