21714759

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{521}}^1$

素因数の和:959

約数の個数: 24

約数和(自身を含む): 34364304

約数和(自身を除く): 12649545

約数列:

[1, 3, 9, 11, 33, 99, 421, 521, 1263, 1563, 3789, 4631, 4689, 5731, 13893, 17193, 41679, 51579, 219341, 658023, 1974069, 2412751, 7238253, 21714759]

約数ペア:

[(1, 21714759), (3, 7238253), (9, 2412751), (11, 1974069), (33, 658023), (99, 219341), (421, 51579), (521, 41679), (1263, 17193), (1563, 13893), (3789, 5731), (4631, 4689)]