20707258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4259}}^1$

素因数の和:4302

約数の個数: 32

約数和(自身を含む): 38646720

約数和(自身を除く): 17939462

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4259, 4862, 8518, 46849, 55367, 72403, 93698, 110734, 144806, 609037, 796433, 941239, 1218074, 1592866, 1882478, 10353629, 20707258]

約数ペア:

[(1, 20707258), (2, 10353629), (11, 1882478), (13, 1592866), (17, 1218074), (22, 941239), (26, 796433), (34, 609037), (143, 144806), (187, 110734), (221, 93698), (286, 72403), (374, 55367), (442, 46849), (2431, 8518), (4259, 4862)]