21917279

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 24084480

約数和(自身を除く): 2167201

約数列:

[1, 19, 31, 127, 293, 589, 2413, 3937, 5567, 9083, 37211, 74803, 172577, 707009, 1153541, 21917279]

約数ペア:

[(1, 21917279), (19, 1153541), (31, 707009), (127, 172577), (293, 74803), (589, 37211), (2413, 9083), (3937, 5567)]