20640552

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{12113}}^1$

素因数の和:12193

約数の個数: 32

約数和(自身を含む): 52332480

約数和(自身を除く): 31691928

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 568, 852, 1704, 12113, 24226, 36339, 48452, 72678, 96904, 145356, 290712, 860023, 1720046, 2580069, 3440092, 5160138, 6880184, 10320276, 20640552]

約数ペア:

[(1, 20640552), (2, 10320276), (3, 6880184), (4, 5160138), (6, 3440092), (8, 2580069), (12, 1720046), (24, 860023), (71, 290712), (142, 145356), (213, 96904), (284, 72678), (426, 48452), (568, 36339), (852, 24226), (1704, 12113)]