21393038

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{20297}}^1$

素因数の和:20347

約数の個数: 16

約数和(自身を含む): 35074944

約数和(自身を除く): 13681906

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 20297, 40594, 345049, 629207, 690098, 1258414, 10696519, 21393038]

約数ペア:

[(1, 21393038), (2, 10696519), (17, 1258414), (31, 690098), (34, 629207), (62, 345049), (527, 40594), (1054, 20297)]