20953908

素因数分解:

$2^2\times 3^2\times {\mathrm{103}}^1\times {\mathrm{5651}}^1$

素因数の和:5764

約数の個数: 36

約数和(自身を含む): 53490528

約数和(自身を除く): 32536620

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 103, 206, 309, 412, 618, 927, 1236, 1854, 3708, 5651, 11302, 16953, 22604, 33906, 50859, 67812, 101718, 203436, 582053, 1164106, 1746159, 2328212, 3492318, 5238477, 6984636, 10476954, 20953908]

約数ペア:

[(1, 20953908), (2, 10476954), (3, 6984636), (4, 5238477), (6, 3492318), (9, 2328212), (12, 1746159), (18, 1164106), (36, 582053), (103, 203436), (206, 101718), (309, 67812), (412, 50859), (618, 33906), (927, 22604), (1236, 16953), (1854, 11302), (3708, 5651)]