16221429

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{6959}}^1$

素因数の和:7009

約数の個数: 24

約数和(自身を含む): 27505920

約数和(自身を除く): 11284491

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 6959, 20877, 48713, 62631, 146139, 257483, 438417, 772449, 1802381, 2317347, 5407143, 16221429]

約数ペア:

[(1, 16221429), (3, 5407143), (7, 2317347), (9, 1802381), (21, 772449), (37, 438417), (63, 257483), (111, 146139), (259, 62631), (333, 48713), (777, 20877), (2331, 6959)]