21290086

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{1531}}^1$

素因数の和:1959

約数の個数: 16

約数和(自身を含む): 33918480

約数和(自身を除く): 12628394

約数列:

[1, 2, 17, 34, 409, 818, 1531, 3062, 6953, 13906, 26027, 52054, 626179, 1252358, 10645043, 21290086]

約数ペア:

[(1, 21290086), (2, 10645043), (17, 1252358), (34, 626179), (409, 52054), (818, 26027), (1531, 13906), (3062, 6953)]