21278850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{1117}}^1$

素因数の和:1259

約数の個数: 48

約数和(自身を含む): 53234688

約数和(自身を除く): 31955838

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 127, 150, 254, 381, 635, 762, 1117, 1270, 1905, 2234, 3175, 3351, 3810, 5585, 6350, 6702, 9525, 11170, 16755, 19050, 27925, 33510, 55850, 83775, 141859, 167550, 283718, 425577, 709295, 851154, 1418590, 2127885, 3546475, 4255770, 7092950, 10639425, 21278850]

約数ペア:

[(1, 21278850), (2, 10639425), (3, 7092950), (5, 4255770), (6, 3546475), (10, 2127885), (15, 1418590), (25, 851154), (30, 709295), (50, 425577), (75, 283718), (127, 167550), (150, 141859), (254, 83775), (381, 55850), (635, 33510), (762, 27925), (1117, 19050), (1270, 16755), (1905, 11170), (2234, 9525), (3175, 6702), (3351, 6350), (3810, 5585)]