21363088

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31051}}^1$

素因数の和:31102

約数の個数: 20

約数和(自身を含む): 42354928

約数和(自身を除く): 20991840

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31051, 62102, 124204, 248408, 496816, 1335193, 2670386, 5340772, 10681544, 21363088]

約数ペア:

[(1, 21363088), (2, 10681544), (4, 5340772), (8, 2670386), (16, 1335193), (43, 496816), (86, 248408), (172, 124204), (344, 62102), (688, 31051)]