21386398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{33521}}^1$

素因数の和:33563

約数の個数: 16

約数和(自身を含む): 36203760

約数和(自身を除く): 14817362

約数列:

[1, 2, 11, 22, 29, 58, 319, 638, 33521, 67042, 368731, 737462, 972109, 1944218, 10693199, 21386398]

約数ペア:

[(1, 21386398), (2, 10693199), (11, 1944218), (22, 972109), (29, 737462), (58, 368731), (319, 67042), (638, 33521)]