21522865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47303}}^1$

素因数の和:47328

約数の個数: 16

約数和(自身を含む): 31788288

約数和(自身を除く): 10265423

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 47303, 236515, 331121, 614939, 1655605, 3074695, 4304573, 21522865]

約数ペア:

[(1, 21522865), (5, 4304573), (7, 3074695), (13, 1655605), (35, 614939), (65, 331121), (91, 236515), (455, 47303)]