21540394

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{1549}}^1$

素因数の和:1977

約数の個数: 16

約数和(自身を含む): 34317000

約数和(自身を除く): 12776606

約数列:

[1, 2, 17, 34, 409, 818, 1549, 3098, 6953, 13906, 26333, 52666, 633541, 1267082, 10770197, 21540394]

約数ペア:

[(1, 21540394), (2, 10770197), (17, 1267082), (34, 633541), (409, 52666), (818, 26333), (1549, 13906), (3098, 6953)]