20921395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{4583}}^1$

素因数の和:4682

約数の個数: 16

約数和(自身を含む): 27724032

約数和(自身を除く): 6802637

約数列:

[1, 5, 11, 55, 83, 415, 913, 4565, 4583, 22915, 50413, 252065, 380389, 1901945, 4184279, 20921395]

約数ペア:

[(1, 20921395), (5, 4184279), (11, 1901945), (55, 380389), (83, 252065), (415, 50413), (913, 22915), (4565, 4583)]