20978056

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1069}}^1$

素因数の和:1309

約数の個数: 32

約数和(自身を含む): 43142400

約数和(自身を除く): 22164344

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 223, 446, 892, 1069, 1784, 2138, 2453, 4276, 4906, 8552, 9812, 11759, 19624, 23518, 47036, 94072, 238387, 476774, 953548, 1907096, 2622257, 5244514, 10489028, 20978056]

約数ペア:

[(1, 20978056), (2, 10489028), (4, 5244514), (8, 2622257), (11, 1907096), (22, 953548), (44, 476774), (88, 238387), (223, 94072), (446, 47036), (892, 23518), (1069, 19624), (1784, 11759), (2138, 9812), (2453, 8552), (4276, 4906)]