21496431

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{15149}}^1$

素因数の和:15206

約数の個数: 16

約数和(自身を含む): 31996800

約数和(自身を除く): 10500369

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 15149, 45447, 166639, 499917, 651407, 1954221, 7165477, 21496431]

約数ペア:

[(1, 21496431), (3, 7165477), (11, 1954221), (33, 651407), (43, 499917), (129, 166639), (473, 45447), (1419, 15149)]