7857213

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1693}}^1$

素因数の和:1733

約数の個数: 32

約数和(自身を含む): 13660416

約数和(自身を除く): 5803203

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 1693, 4641, 5079, 11851, 22009, 28781, 35553, 66027, 86343, 154063, 201467, 374153, 462189, 604401, 1122459, 2619071, 7857213]

約数ペア:

[(1, 7857213), (3, 2619071), (7, 1122459), (13, 604401), (17, 462189), (21, 374153), (39, 201467), (51, 154063), (91, 86343), (119, 66027), (221, 35553), (273, 28781), (357, 22009), (663, 11851), (1547, 5079), (1693, 4641)]