21219045

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10177}}^1$

素因数の和:10324

約数の個数: 16

約数和(自身を含む): 34198080

約数和(自身を除く): 12979035

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 10177, 30531, 50885, 152655, 1414603, 4243809, 7073015, 21219045]

約数ペア:

[(1, 21219045), (3, 7073015), (5, 4243809), (15, 1414603), (139, 152655), (417, 50885), (695, 30531), (2085, 10177)]