21280204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{5827}}^1$

素因数の和:5925

約数の個数: 24

約数和(自身を含む): 41122368

約数和(自身を除く): 19842164

約数列:

[1, 2, 4, 11, 22, 44, 83, 166, 332, 913, 1826, 3652, 5827, 11654, 23308, 64097, 128194, 256388, 483641, 967282, 1934564, 5320051, 10640102, 21280204]

約数ペア:

[(1, 21280204), (2, 10640102), (4, 5320051), (11, 1934564), (22, 967282), (44, 483641), (83, 256388), (166, 128194), (332, 64097), (913, 23308), (1826, 11654), (3652, 5827)]