398242

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1$

素因数の和:102

約数の個数: 24

約数和(自身を含む): 696276

約数和(自身を除く): 298034

約数列:

[1, 2, 13, 17, 26, 34, 53, 106, 221, 289, 442, 578, 689, 901, 1378, 1802, 3757, 7514, 11713, 15317, 23426, 30634, 199121, 398242]

約数ペア:

[(1, 398242), (2, 199121), (13, 30634), (17, 23426), (26, 15317), (34, 11713), (53, 7514), (106, 3757), (221, 1802), (289, 1378), (442, 901), (578, 689)]