21308386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{2683}}^1$

素因数の和:2734

約数の個数: 24

約数和(自身を含む): 36813744

約数和(自身を除く): 15505358

約数列:

[1, 2, 11, 19, 22, 38, 209, 361, 418, 722, 2683, 3971, 5366, 7942, 29513, 50977, 59026, 101954, 560747, 968563, 1121494, 1937126, 10654193, 21308386]

約数ペア:

[(1, 21308386), (2, 10654193), (11, 1937126), (19, 1121494), (22, 968563), (38, 560747), (209, 101954), (361, 59026), (418, 50977), (722, 29513), (2683, 7942), (3971, 5366)]