398745268

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{27791}}^1$

素因数の和:28023

約数の個数: 24

約数和(自身を含む): 742379904

約数和(自身を除く): 343634636

約数列:

[1, 2, 4, 17, 34, 68, 211, 422, 844, 3587, 7174, 14348, 27791, 55582, 111164, 472447, 944894, 1889788, 5863901, 11727802, 23455604, 99686317, 199372634, 398745268]

約数ペア:

[(1, 398745268), (2, 199372634), (4, 99686317), (17, 23455604), (34, 11727802), (68, 5863901), (211, 1889788), (422, 944894), (844, 472447), (3587, 111164), (7174, 55582), (14348, 27791)]