21281550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{337}}^1\times {\mathrm{421}}^1$

素因数の和:773

約数の個数: 48

約数和(自身を含む): 53060592

約数和(自身を除く): 31779042

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 337, 421, 674, 842, 1011, 1263, 1685, 2022, 2105, 2526, 3370, 4210, 5055, 6315, 8425, 10110, 10525, 12630, 16850, 21050, 25275, 31575, 50550, 63150, 141877, 283754, 425631, 709385, 851262, 1418770, 2128155, 3546925, 4256310, 7093850, 10640775, 21281550]

約数ペア:

[(1, 21281550), (2, 10640775), (3, 7093850), (5, 4256310), (6, 3546925), (10, 2128155), (15, 1418770), (25, 851262), (30, 709385), (50, 425631), (75, 283754), (150, 141877), (337, 63150), (421, 50550), (674, 31575), (842, 25275), (1011, 21050), (1263, 16850), (1685, 12630), (2022, 10525), (2105, 10110), (2526, 8425), (3370, 6315), (4210, 5055)]