21748550

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:377

約数の個数: 48

約数和(自身を含む): 42787440

約数和(自身を除く): 21038890

約数列:

[1, 2, 5, 10, 25, 29, 50, 53, 58, 106, 145, 265, 283, 290, 530, 566, 725, 1325, 1415, 1450, 1537, 2650, 2830, 3074, 7075, 7685, 8207, 14150, 14999, 15370, 16414, 29998, 38425, 41035, 74995, 76850, 82070, 149990, 205175, 374975, 410350, 434971, 749950, 869942, 2174855, 4349710, 10874275, 21748550]

約数ペア:

[(1, 21748550), (2, 10874275), (5, 4349710), (10, 2174855), (25, 869942), (29, 749950), (50, 434971), (53, 410350), (58, 374975), (106, 205175), (145, 149990), (265, 82070), (283, 76850), (290, 74995), (530, 41035), (566, 38425), (725, 29998), (1325, 16414), (1415, 15370), (1450, 14999), (1537, 14150), (2650, 8207), (2830, 7685), (3074, 7075)]