20512787729

素因数分解:

$7^2\times {\mathrm{89}}^1\times {\mathrm{1607}}^1\times {\mathrm{2927}}^1$

素因数の和:4637

約数の個数: 24

約数和(自身を含む): 24153189120

約数和(自身を除く): 3640401391

約数列:

[1, 7, 49, 89, 623, 1607, 2927, 4361, 11249, 20489, 78743, 143023, 143423, 260503, 1001161, 1823521, 4703689, 7008127, 12764647, 32925823, 230480761, 418628321, 2930398247, 20512787729]

約数ペア:

[(1, 20512787729), (7, 2930398247), (49, 418628321), (89, 230480761), (623, 32925823), (1607, 12764647), (2927, 7008127), (4361, 4703689), (11249, 1823521), (20489, 1001161), (78743, 260503), (143023, 143423)]