213395

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:99

約数の個数: 24

約数和(自身を含む): 325584

約数和(自身を除く): 112189

約数列:

[1, 5, 7, 13, 35, 49, 65, 67, 91, 245, 335, 455, 469, 637, 871, 2345, 3185, 3283, 4355, 6097, 16415, 30485, 42679, 213395]

約数ペア:

[(1, 213395), (5, 42679), (7, 30485), (13, 16415), (35, 6097), (49, 4355), (65, 3283), (67, 3185), (91, 2345), (245, 871), (335, 637), (455, 469)]