18157020203

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1\times {\mathrm{5417}}^1$

素因数の和:5747

約数の個数: 32

約数和(自身を含む): 21970206720

約数和(自身を除く): 3813186517

約数列:

[1, 7, 23, 109, 161, 191, 763, 1337, 2507, 4393, 5417, 17549, 20819, 30751, 37919, 124591, 145733, 478837, 590453, 872137, 1034647, 3351859, 4133171, 7242529, 13580419, 23796881, 95062933, 112776523, 166578167, 789435661, 2593860029, 18157020203]

約数ペア:

[(1, 18157020203), (7, 2593860029), (23, 789435661), (109, 166578167), (161, 112776523), (191, 95062933), (763, 23796881), (1337, 13580419), (2507, 7242529), (4393, 4133171), (5417, 3351859), (17549, 1034647), (20819, 872137), (30751, 590453), (37919, 478837), (124591, 145733)]