21888290

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{467}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 40772160

約数和(自身を除く): 18883870

約数列:

[1, 2, 5, 10, 43, 86, 109, 215, 218, 430, 467, 545, 934, 1090, 2335, 4670, 4687, 9374, 20081, 23435, 40162, 46870, 50903, 100405, 101806, 200810, 254515, 509030, 2188829, 4377658, 10944145, 21888290]

約数ペア:

[(1, 21888290), (2, 10944145), (5, 4377658), (10, 2188829), (43, 509030), (86, 254515), (109, 200810), (215, 101806), (218, 100405), (430, 50903), (467, 46870), (545, 40162), (934, 23435), (1090, 20081), (2335, 9374), (4670, 4687)]