21316476

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 51497600

約数和(自身を除く): 30181124

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 109, 129, 172, 218, 258, 327, 379, 436, 516, 654, 758, 1137, 1308, 1516, 2274, 4548, 4687, 9374, 14061, 16297, 18748, 28122, 32594, 41311, 48891, 56244, 65188, 82622, 97782, 123933, 165244, 195564, 247866, 495732, 1776373, 3552746, 5329119, 7105492, 10658238, 21316476]

約数ペア:

[(1, 21316476), (2, 10658238), (3, 7105492), (4, 5329119), (6, 3552746), (12, 1776373), (43, 495732), (86, 247866), (109, 195564), (129, 165244), (172, 123933), (218, 97782), (258, 82622), (327, 65188), (379, 56244), (436, 48891), (516, 41311), (654, 32594), (758, 28122), (1137, 18748), (1308, 16297), (1516, 14061), (2274, 9374), (4548, 4687)]