21657495

素因数分解:

$3^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{7481}}^1$

素因数の和:7682

約数の個数: 16

約数和(自身を含む): 34836192

約数和(自身を除く): 13178697

約数列:

[1, 3, 5, 15, 193, 579, 965, 2895, 7481, 22443, 37405, 112215, 1443833, 4331499, 7219165, 21657495]

約数ペア:

[(1, 21657495), (3, 7219165), (5, 4331499), (15, 1443833), (193, 112215), (579, 37405), (965, 22443), (2895, 7481)]