20181535

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12653}}^1$

素因数の和:12698

約数の個数: 16

約数和(自身を含む): 27332640

約数和(自身を除く): 7151105

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 12653, 63265, 139183, 366937, 695915, 1834685, 4036307, 20181535]

約数ペア:

[(1, 20181535), (5, 4036307), (11, 1834685), (29, 695915), (55, 366937), (145, 139183), (319, 63265), (1595, 12653)]