21358358

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2087}}^1$

素因数の和:2156

約数の個数: 32

約数和(自身を含む): 39688704

約数和(自身を除く): 18330346

約数列:

[1, 2, 7, 14, 17, 34, 43, 86, 119, 238, 301, 602, 731, 1462, 2087, 4174, 5117, 10234, 14609, 29218, 35479, 70958, 89741, 179482, 248353, 496706, 628187, 1256374, 1525597, 3051194, 10679179, 21358358]

約数ペア:

[(1, 21358358), (2, 10679179), (7, 3051194), (14, 1525597), (17, 1256374), (34, 628187), (43, 496706), (86, 248353), (119, 179482), (238, 89741), (301, 70958), (602, 35479), (731, 29218), (1462, 14609), (2087, 10234), (4174, 5117)]