21909900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{199}}^1\times {\mathrm{367}}^1$

素因数の和:583

約数の個数: 72

約数和(自身を含む): 63884800

約数和(自身を除く): 41974900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 199, 300, 367, 398, 597, 734, 796, 995, 1101, 1194, 1468, 1835, 1990, 2202, 2388, 2985, 3670, 3980, 4404, 4975, 5505, 5970, 7340, 9175, 9950, 11010, 11940, 14925, 18350, 19900, 22020, 27525, 29850, 36700, 55050, 59700, 73033, 110100, 146066, 219099, 292132, 365165, 438198, 730330, 876396, 1095495, 1460660, 1825825, 2190990, 3651650, 4381980, 5477475, 7303300, 10954950, 21909900]

約数ペア:

[(1, 21909900), (2, 10954950), (3, 7303300), (4, 5477475), (5, 4381980), (6, 3651650), (10, 2190990), (12, 1825825), (15, 1460660), (20, 1095495), (25, 876396), (30, 730330), (50, 438198), (60, 365165), (75, 292132), (100, 219099), (150, 146066), (199, 110100), (300, 73033), (367, 59700), (398, 55050), (597, 36700), (734, 29850), (796, 27525), (995, 22020), (1101, 19900), (1194, 18350), (1468, 14925), (1835, 11940), (1990, 11010), (2202, 9950), (2388, 9175), (2985, 7340), (3670, 5970), (3980, 5505), (4404, 4975)]