20110904

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1321}}^1$

素因数の和:1511

約数の個数: 32

約数和(自身を含む): 41405040

約数和(自身を除く): 21294136

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 173, 346, 692, 1321, 1384, 1903, 2642, 3806, 5284, 7612, 10568, 14531, 15224, 29062, 58124, 116248, 228533, 457066, 914132, 1828264, 2513863, 5027726, 10055452, 20110904]

約数ペア:

[(1, 20110904), (2, 10055452), (4, 5027726), (8, 2513863), (11, 1828264), (22, 914132), (44, 457066), (88, 228533), (173, 116248), (346, 58124), (692, 29062), (1321, 15224), (1384, 14531), (1903, 10568), (2642, 7612), (3806, 5284)]