21796905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{111779}}^1$

素因数の和:111800

約数の個数: 16

約数和(自身を含む): 37558080

約数和(自身を除く): 15761175

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 111779, 335337, 558895, 1453127, 1676685, 4359381, 7265635, 21796905]

約数ペア:

[(1, 21796905), (3, 7265635), (5, 4359381), (13, 1676685), (15, 1453127), (39, 558895), (65, 335337), (195, 111779)]