21307212

素因数分解:

$2^2\times 3^6\times {\mathrm{7307}}^1$

素因数の和:7329

約数の個数: 42

約数和(自身を含む): 55913508

約数和(自身を除く): 34606296

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 7307, 14614, 21921, 29228, 43842, 65763, 87684, 131526, 197289, 263052, 394578, 591867, 789156, 1183734, 1775601, 2367468, 3551202, 5326803, 7102404, 10653606, 21307212]

約数ペア:

[(1, 21307212), (2, 10653606), (3, 7102404), (4, 5326803), (6, 3551202), (9, 2367468), (12, 1775601), (18, 1183734), (27, 789156), (36, 591867), (54, 394578), (81, 263052), (108, 197289), (162, 131526), (243, 87684), (324, 65763), (486, 43842), (729, 29228), (972, 21921), (1458, 14614), (2916, 7307)]