20685544

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{751}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 42503040

約数和(自身を除く): 21817496

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 313, 626, 751, 1252, 1502, 2504, 3004, 3443, 6008, 6886, 8261, 13772, 16522, 27544, 33044, 66088, 235063, 470126, 940252, 1880504, 2585693, 5171386, 10342772, 20685544]

約数ペア:

[(1, 20685544), (2, 10342772), (4, 5171386), (8, 2585693), (11, 1880504), (22, 940252), (44, 470126), (88, 235063), (313, 66088), (626, 33044), (751, 27544), (1252, 16522), (1502, 13772), (2504, 8261), (3004, 6886), (3443, 6008)]