20791672

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 43858080

約数和(自身を除く): 23066408

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 121, 188, 242, 376, 457, 484, 517, 914, 968, 1034, 1828, 2068, 3656, 4136, 5027, 5687, 10054, 11374, 20108, 21479, 22748, 40216, 42958, 45496, 55297, 85916, 110594, 171832, 221188, 236269, 442376, 472538, 945076, 1890152, 2598959, 5197918, 10395836, 20791672]

約数ペア:

[(1, 20791672), (2, 10395836), (4, 5197918), (8, 2598959), (11, 1890152), (22, 945076), (44, 472538), (47, 442376), (88, 236269), (94, 221188), (121, 171832), (188, 110594), (242, 85916), (376, 55297), (457, 45496), (484, 42958), (517, 40216), (914, 22748), (968, 21479), (1034, 20108), (1828, 11374), (2068, 10054), (3656, 5687), (4136, 5027)]