21957135

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10531}}^1$

素因数の和:10678

約数の個数: 16

約数和(自身を含む): 35387520

約数和(自身を除く): 13430385

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 10531, 31593, 52655, 157965, 1463809, 4391427, 7319045, 21957135]

約数ペア:

[(1, 21957135), (3, 7319045), (5, 4391427), (15, 1463809), (139, 157965), (417, 52655), (695, 31593), (2085, 10531)]