21247806

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{613}}^1$

素因数の和:780

約数の個数: 32

約数和(自身を含む): 43765920

約数和(自身を除く): 22518114

約数列:

[1, 2, 3, 6, 53, 106, 109, 159, 218, 318, 327, 613, 654, 1226, 1839, 3678, 5777, 11554, 17331, 32489, 34662, 64978, 66817, 97467, 133634, 194934, 200451, 400902, 3541301, 7082602, 10623903, 21247806]

約数ペア:

[(1, 21247806), (2, 10623903), (3, 7082602), (6, 3541301), (53, 400902), (106, 200451), (109, 194934), (159, 133634), (218, 97467), (318, 66817), (327, 64978), (613, 34662), (654, 32489), (1226, 17331), (1839, 11554), (3678, 5777)]