20690846

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 35762688

約数和(自身を除く): 15071842

約数列:

[1, 2, 11, 22, 23, 46, 103, 206, 253, 397, 506, 794, 1133, 2266, 2369, 4367, 4738, 8734, 9131, 18262, 26059, 40891, 52118, 81782, 100441, 200882, 449801, 899602, 940493, 1880986, 10345423, 20690846]

約数ペア:

[(1, 20690846), (2, 10345423), (11, 1880986), (22, 940493), (23, 899602), (46, 449801), (103, 200882), (206, 100441), (253, 81782), (397, 52118), (506, 40891), (794, 26059), (1133, 18262), (2266, 9131), (2369, 8734), (4367, 4738)]