21227943

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{2503}}^1$

素因数の和:2774

約数の個数: 16

約数和(自身を含む): 31009536

約数和(自身を除く): 9781593

約数列:

[1, 3, 11, 33, 257, 771, 2503, 2827, 7509, 8481, 27533, 82599, 643271, 1929813, 7075981, 21227943]

約数ペア:

[(1, 21227943), (3, 7075981), (11, 1929813), (33, 643271), (257, 82599), (771, 27533), (2503, 8481), (2827, 7509)]