20447548

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:618

約数の個数: 36

約数和(自身を含む): 39884040

約数和(自身を除く): 19436492

約数列:

[1, 2, 4, 11, 22, 44, 83, 121, 166, 242, 332, 484, 509, 913, 1018, 1826, 2036, 3652, 5599, 10043, 11198, 20086, 22396, 40172, 42247, 61589, 84494, 123178, 168988, 246356, 464717, 929434, 1858868, 5111887, 10223774, 20447548]

約数ペア:

[(1, 20447548), (2, 10223774), (4, 5111887), (11, 1858868), (22, 929434), (44, 464717), (83, 246356), (121, 168988), (166, 123178), (242, 84494), (332, 61589), (484, 42247), (509, 40172), (913, 22396), (1018, 20086), (1826, 11198), (2036, 10043), (3652, 5599)]