21130450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{373}}^1$

素因数の和:499

約数の個数: 48

約数和(自身を含む): 43407936

約数和(自身を除く): 22277486

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 103, 110, 206, 275, 373, 515, 550, 746, 1030, 1133, 1865, 2266, 2575, 3730, 4103, 5150, 5665, 8206, 9325, 11330, 18650, 20515, 28325, 38419, 41030, 56650, 76838, 102575, 192095, 205150, 384190, 422609, 845218, 960475, 1920950, 2113045, 4226090, 10565225, 21130450]

約数ペア:

[(1, 21130450), (2, 10565225), (5, 4226090), (10, 2113045), (11, 1920950), (22, 960475), (25, 845218), (50, 422609), (55, 384190), (103, 205150), (110, 192095), (206, 102575), (275, 76838), (373, 56650), (515, 41030), (550, 38419), (746, 28325), (1030, 20515), (1133, 18650), (1865, 11330), (2266, 9325), (2575, 8206), (3730, 5665), (4103, 5150)]