20139724

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41611}}^1$

素因数の和:41637

約数の個数: 18

約数和(自身を含む): 38740772

約数和(自身を除く): 18601048

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41611, 83222, 166444, 457721, 915442, 1830884, 5034931, 10069862, 20139724]

約数ペア:

[(1, 20139724), (2, 10069862), (4, 5034931), (11, 1830884), (22, 915442), (44, 457721), (121, 166444), (242, 83222), (484, 41611)]