20798987

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:434

約数の個数: 16

約数和(自身を含む): 23331840

約数和(自身を除く): 2532853

約数列:

[1, 11, 61, 139, 223, 671, 1529, 2453, 8479, 13603, 30997, 93269, 149633, 340967, 1890817, 20798987]

約数ペア:

[(1, 20798987), (11, 1890817), (61, 340967), (139, 149633), (223, 93269), (671, 30997), (1529, 13603), (2453, 8479)]