21166492

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{1129}}^1$

素因数の和:1285

約数の個数: 24

約数和(自身を含む): 38284400

約数和(自身を除く): 17117908

約数列:

[1, 2, 4, 43, 86, 109, 172, 218, 436, 1129, 2258, 4516, 4687, 9374, 18748, 48547, 97094, 123061, 194188, 246122, 492244, 5291623, 10583246, 21166492]

約数ペア:

[(1, 21166492), (2, 10583246), (4, 5291623), (43, 492244), (86, 246122), (109, 194188), (172, 123061), (218, 97094), (436, 48547), (1129, 18748), (2258, 9374), (4516, 4687)]