21957901

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{5693}}^1$

素因数の和:5748

約数の個数: 16

約数和(自身を含む): 27331200

約数和(自身を除く): 5373299

約数列:

[1, 7, 19, 29, 133, 203, 551, 3857, 5693, 39851, 108167, 165097, 757169, 1155679, 3136843, 21957901]

約数ペア:

[(1, 21957901), (7, 3136843), (19, 1155679), (29, 757169), (133, 165097), (203, 108167), (551, 39851), (3857, 5693)]