21299550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{149}}^1\times {\mathrm{953}}^1$

素因数の和:1117

約数の個数: 48

約数和(自身を含む): 53233200

約数和(自身を除く): 31933650

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 149, 150, 298, 447, 745, 894, 953, 1490, 1906, 2235, 2859, 3725, 4470, 4765, 5718, 7450, 9530, 11175, 14295, 22350, 23825, 28590, 47650, 71475, 141997, 142950, 283994, 425991, 709985, 851982, 1419970, 2129955, 3549925, 4259910, 7099850, 10649775, 21299550]

約数ペア:

[(1, 21299550), (2, 10649775), (3, 7099850), (5, 4259910), (6, 3549925), (10, 2129955), (15, 1419970), (25, 851982), (30, 709985), (50, 425991), (75, 283994), (149, 142950), (150, 141997), (298, 71475), (447, 47650), (745, 28590), (894, 23825), (953, 22350), (1490, 14295), (1906, 11175), (2235, 9530), (2859, 7450), (3725, 5718), (4470, 4765)]