21161604

素因数分解:

$2^2\times 3^1\times {\mathrm{107}}^1\times {\mathrm{16481}}^1$

素因数の和:16595

約数の個数: 24

約数和(自身を含む): 49841568

約数和(自身を除く): 28679964

約数列:

[1, 2, 3, 4, 6, 12, 107, 214, 321, 428, 642, 1284, 16481, 32962, 49443, 65924, 98886, 197772, 1763467, 3526934, 5290401, 7053868, 10580802, 21161604]

約数ペア:

[(1, 21161604), (2, 10580802), (3, 7053868), (4, 5290401), (6, 3526934), (12, 1763467), (107, 197772), (214, 98886), (321, 65924), (428, 49443), (642, 32962), (1284, 16481)]