21112401

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{2141}}^1$

素因数の和:2336

約数の個数: 16

約数和(自身を含む): 29816640

約数和(自身を除く): 8704239

約数列:

[1, 3, 19, 57, 173, 519, 2141, 3287, 6423, 9861, 40679, 122037, 370393, 1111179, 7037467, 21112401]

約数ペア:

[(1, 21112401), (3, 7037467), (19, 1111179), (57, 370393), (173, 122037), (519, 40679), (2141, 9861), (3287, 6423)]