19915788481

素因数分解:

${\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{691}}^1\times {\mathrm{6361}}^1$

素因数の和:7272

約数の個数: 16

約数和(自身を含む): 20920699008

約数和(自身を除く): 1004910527

約数列:

[1, 23, 197, 691, 4531, 6361, 15893, 136127, 146303, 1253117, 3130921, 4395451, 28821691, 101095373, 865903847, 19915788481]

約数ペア:

[(1, 19915788481), (23, 865903847), (197, 101095373), (691, 28821691), (4531, 4395451), (6361, 3130921), (15893, 1253117), (136127, 146303)]