21795105

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{673}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 37269504

約数和(自身を除く): 15474399

約数列:

[1, 3, 5, 15, 17, 51, 85, 127, 255, 381, 635, 673, 1905, 2019, 2159, 3365, 6477, 10095, 10795, 11441, 32385, 34323, 57205, 85471, 171615, 256413, 427355, 1282065, 1453007, 4359021, 7265035, 21795105]

約数ペア:

[(1, 21795105), (3, 7265035), (5, 4359021), (15, 1453007), (17, 1282065), (51, 427355), (85, 256413), (127, 171615), (255, 85471), (381, 57205), (635, 34323), (673, 32385), (1905, 11441), (2019, 10795), (2159, 10095), (3365, 6477)]