21900159

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{13297}}^1$

素因数の和:13367

約数の個数: 16

約数和(自身を含む): 32979040

約数和(自身を除く): 11078881

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 13297, 39891, 119673, 359019, 811117, 2433351, 7300053, 21900159]

約数ペア:

[(1, 21900159), (3, 7300053), (9, 2433351), (27, 811117), (61, 359019), (183, 119673), (549, 39891), (1647, 13297)]