20191105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12659}}^1$

素因数の和:12704

約数の個数: 16

約数和(自身を含む): 27345600

約数和(自身を除く): 7154495

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 12659, 63295, 139249, 367111, 696245, 1835555, 4038221, 20191105]

約数ペア:

[(1, 20191105), (5, 4038221), (11, 1835555), (29, 696245), (55, 367111), (145, 139249), (319, 63295), (1595, 12659)]