20968500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{1997}}^1$

素因数の和:2026

約数の個数: 96

約数和(自身を含む): 69818112

約数和(自身を除く): 48849612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 125, 140, 150, 175, 210, 250, 300, 350, 375, 420, 500, 525, 700, 750, 875, 1050, 1500, 1750, 1997, 2100, 2625, 3500, 3994, 5250, 5991, 7988, 9985, 10500, 11982, 13979, 19970, 23964, 27958, 29955, 39940, 41937, 49925, 55916, 59910, 69895, 83874, 99850, 119820, 139790, 149775, 167748, 199700, 209685, 249625, 279580, 299550, 349475, 419370, 499250, 599100, 698950, 748875, 838740, 998500, 1048425, 1397900, 1497750, 1747375, 2096850, 2995500, 3494750, 4193700, 5242125, 6989500, 10484250, 20968500]

約数ペア:

[(1, 20968500), (2, 10484250), (3, 6989500), (4, 5242125), (5, 4193700), (6, 3494750), (7, 2995500), (10, 2096850), (12, 1747375), (14, 1497750), (15, 1397900), (20, 1048425), (21, 998500), (25, 838740), (28, 748875), (30, 698950), (35, 599100), (42, 499250), (50, 419370), (60, 349475), (70, 299550), (75, 279580), (84, 249625), (100, 209685), (105, 199700), (125, 167748), (140, 149775), (150, 139790), (175, 119820), (210, 99850), (250, 83874), (300, 69895), (350, 59910), (375, 55916), (420, 49925), (500, 41937), (525, 39940), (700, 29955), (750, 27958), (875, 23964), (1050, 19970), (1500, 13979), (1750, 11982), (1997, 10500), (2100, 9985), (2625, 7988), (3500, 5991), (3994, 5250)]