21540135

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10331}}^1$

素因数の和:10478

約数の個数: 16

約数和(自身を含む): 34715520

約数和(自身を除く): 13175385

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 10331, 30993, 51655, 154965, 1436009, 4308027, 7180045, 21540135]

約数ペア:

[(1, 21540135), (3, 7180045), (5, 4308027), (15, 1436009), (139, 154965), (417, 51655), (695, 30993), (2085, 10331)]