20618472004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{704279}}^1$

素因数の和:704859

約数の個数: 24

約数和(自身を含む): 38926964160

約数和(自身を除く): 18308492156

約数列:

[1, 2, 4, 13, 26, 52, 563, 1126, 2252, 7319, 14638, 29276, 704279, 1408558, 2817116, 9155627, 18311254, 36622508, 396509077, 793018154, 1586036308, 5154618001, 10309236002, 20618472004]

約数ペア:

[(1, 20618472004), (2, 10309236002), (4, 5154618001), (13, 1586036308), (26, 793018154), (52, 396509077), (563, 36622508), (1126, 18311254), (2252, 9155627), (7319, 2817116), (14638, 1408558), (29276, 704279)]