20470892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{393671}}^1$

素因数の和:393688

約数の個数: 12

約数和(自身を含む): 38579856

約数和(自身を除く): 18108964

約数列:

[1, 2, 4, 13, 26, 52, 393671, 787342, 1574684, 5117723, 10235446, 20470892]

約数ペア:

[(1, 20470892), (2, 10235446), (4, 5117723), (13, 1574684), (26, 787342), (52, 393671)]