19943700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{9497}}^1$

素因数の和:9521

約数の個数: 72

約数和(自身を含む): 65954112

約数和(自身を除く): 46010412

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, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 9497, 18994, 28491, 37988, 47485, 56982, 66479, 94970, 113964, 132958, 142455, 189940, 199437, 237425, 265916, 284910, 332395, 398874, 474850, 569820, 664790, 712275, 797748, 949700, 997185, 1329580, 1424550, 1661975, 1994370, 2849100, 3323950, 3988740, 4985925, 6647900, 9971850, 19943700]

約数ペア:

[(1, 19943700), (2, 9971850), (3, 6647900), (4, 4985925), (5, 3988740), (6, 3323950), (7, 2849100), (10, 1994370), (12, 1661975), (14, 1424550), (15, 1329580), (20, 997185), (21, 949700), (25, 797748), (28, 712275), (30, 664790), (35, 569820), (42, 474850), (50, 398874), (60, 332395), (70, 284910), (75, 265916), (84, 237425), (100, 199437), (105, 189940), (140, 142455), (150, 132958), (175, 113964), (210, 94970), (300, 66479), (350, 56982), (420, 47485), (525, 37988), (700, 28491), (1050, 18994), (2100, 9497)]