21789153

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{51511}}^1$

素因数の和:51564

約数の個数: 12

約数和(自身を含む): 32143488

約数和(自身を除く): 10354335

約数列:

[1, 3, 9, 47, 141, 423, 51511, 154533, 463599, 2421017, 7263051, 21789153]

約数ペア:

[(1, 21789153), (3, 7263051), (9, 2421017), (47, 463599), (141, 154533), (423, 51511)]