20578928

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{55921}}^1$

素因数の和:55952

約数の個数: 20

約数和(自身を含む): 41605968

約数和(自身を除く): 21027040

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 55921, 111842, 223684, 447368, 894736, 1286183, 2572366, 5144732, 10289464, 20578928]

約数ペア:

[(1, 20578928), (2, 10289464), (4, 5144732), (8, 2572366), (16, 1286183), (23, 894736), (46, 447368), (92, 223684), (184, 111842), (368, 55921)]