19959705

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3191}}^1$

素因数の和:3341

約数の個数: 24

約数和(自身を含む): 34856640

約数和(自身を除く): 14896935

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 3191, 6255, 9573, 15955, 28719, 47865, 143595, 443549, 1330647, 2217745, 3991941, 6653235, 19959705]

約数ペア:

[(1, 19959705), (3, 6653235), (5, 3991941), (9, 2217745), (15, 1330647), (45, 443549), (139, 143595), (417, 47865), (695, 28719), (1251, 15955), (2085, 9573), (3191, 6255)]