21287097

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60647}}^1$

素因数の和:60669

約数の個数: 16

約数和(自身を含む): 33962880

約数和(自身を除く): 12675783

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60647, 181941, 545823, 788411, 1637469, 2365233, 7095699, 21287097]

約数ペア:

[(1, 21287097), (3, 7095699), (9, 2365233), (13, 1637469), (27, 788411), (39, 545823), (117, 181941), (351, 60647)]