20485815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{195103}}^1$

素因数の和:195118

約数の個数: 16

約数和(自身を含む): 37459968

約数和(自身を除く): 16974153

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 195103, 585309, 975515, 1365721, 2926545, 4097163, 6828605, 20485815]

約数ペア:

[(1, 20485815), (3, 6828605), (5, 4097163), (7, 2926545), (15, 1365721), (21, 975515), (35, 585309), (105, 195103)]