21502050

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{4943}}^1$

素因数の和:4987

約数の個数: 48

約数和(自身を含む): 55175040

約数和(自身を除く): 33672990

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 50, 58, 75, 87, 145, 150, 174, 290, 435, 725, 870, 1450, 2175, 4350, 4943, 9886, 14829, 24715, 29658, 49430, 74145, 123575, 143347, 148290, 247150, 286694, 370725, 430041, 716735, 741450, 860082, 1433470, 2150205, 3583675, 4300410, 7167350, 10751025, 21502050]

約数ペア:

[(1, 21502050), (2, 10751025), (3, 7167350), (5, 4300410), (6, 3583675), (10, 2150205), (15, 1433470), (25, 860082), (29, 741450), (30, 716735), (50, 430041), (58, 370725), (75, 286694), (87, 247150), (145, 148290), (150, 143347), (174, 123575), (290, 74145), (435, 49430), (725, 29658), (870, 24715), (1450, 14829), (2175, 9886), (4350, 4943)]