20826812

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{14423}}^1$

素因数の和:14465

約数の個数: 18

約数和(自身を含む): 38468808

約数和(自身を除く): 17641996

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 14423, 28846, 57692, 274037, 548074, 1096148, 5206703, 10413406, 20826812]

約数ペア:

[(1, 20826812), (2, 10413406), (4, 5206703), (19, 1096148), (38, 548074), (76, 274037), (361, 57692), (722, 28846), (1444, 14423)]