21960836

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{151}}^1\times {\mathrm{353}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 39172224

約数和(自身を除く): 17211388

約数列:

[1, 2, 4, 103, 151, 206, 302, 353, 412, 604, 706, 1412, 15553, 31106, 36359, 53303, 62212, 72718, 106606, 145436, 213212, 5490209, 10980418, 21960836]

約数ペア:

[(1, 21960836), (2, 10980418), (4, 5490209), (103, 213212), (151, 145436), (206, 106606), (302, 72718), (353, 62212), (412, 53303), (604, 36359), (706, 31106), (1412, 15553)]