21944360

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1787}}^1$

素因数の和:2105

約数の個数: 32

約数和(自身を含む): 49563360

約数和(自身を除く): 27619000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 1787, 2456, 3070, 3574, 6140, 7148, 8935, 12280, 14296, 17870, 35740, 71480, 548609, 1097218, 2194436, 2743045, 4388872, 5486090, 10972180, 21944360]

約数ペア:

[(1, 21944360), (2, 10972180), (4, 5486090), (5, 4388872), (8, 2743045), (10, 2194436), (20, 1097218), (40, 548609), (307, 71480), (614, 35740), (1228, 17870), (1535, 14296), (1787, 12280), (2456, 8935), (3070, 7148), (3574, 6140)]