20887548

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{691}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 53477760

約数和(自身を除く): 32590212

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 229, 458, 687, 691, 916, 1374, 1382, 2073, 2519, 2748, 2764, 4146, 5038, 7557, 7601, 8292, 10076, 15114, 15202, 22803, 30228, 30404, 45606, 91212, 158239, 316478, 474717, 632956, 949434, 1740629, 1898868, 3481258, 5221887, 6962516, 10443774, 20887548]

約数ペア:

[(1, 20887548), (2, 10443774), (3, 6962516), (4, 5221887), (6, 3481258), (11, 1898868), (12, 1740629), (22, 949434), (33, 632956), (44, 474717), (66, 316478), (132, 158239), (229, 91212), (458, 45606), (687, 30404), (691, 30228), (916, 22803), (1374, 15202), (1382, 15114), (2073, 10076), (2519, 8292), (2748, 7601), (2764, 7557), (4146, 5038)]