81974626

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{20161}}^1$

素因数の和:20289

約数の個数: 16

約数和(自身を含む): 130649760

約数和(自身を除く): 48675134

約数列:

[1, 2, 19, 38, 107, 214, 2033, 4066, 20161, 40322, 383059, 766118, 2157227, 4314454, 40987313, 81974626]

約数ペア:

[(1, 81974626), (2, 40987313), (19, 4314454), (38, 2157227), (107, 766118), (214, 383059), (2033, 40322), (4066, 20161)]