21389126

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1031}}^1$

素因数の和:1108

約数の個数: 32

約数和(自身を含む): 37449216

約数和(自身を除く): 16060090

約数列:

[1, 2, 11, 22, 23, 41, 46, 82, 253, 451, 506, 902, 943, 1031, 1886, 2062, 10373, 11341, 20746, 22682, 23713, 42271, 47426, 84542, 260843, 464981, 521686, 929962, 972233, 1944466, 10694563, 21389126]

約数ペア:

[(1, 21389126), (2, 10694563), (11, 1944466), (22, 972233), (23, 929962), (41, 521686), (46, 464981), (82, 260843), (253, 84542), (451, 47426), (506, 42271), (902, 23713), (943, 22682), (1031, 20746), (1886, 11341), (2062, 10373)]