26821221

素因数分解:

$3^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{2293}}^1$

素因数の和:2860

約数の個数: 16

約数和(自身を含む): 40961664

約数和(自身を除く): 14140443

約数列:

[1, 3, 7, 21, 557, 1671, 2293, 3899, 6879, 11697, 16051, 48153, 1277201, 3831603, 8940407, 26821221]

約数ペア:

[(1, 26821221), (3, 8940407), (7, 3831603), (21, 1277201), (557, 48153), (1671, 16051), (2293, 11697), (3899, 6879)]