20999268

素因数分解:

$2^2\times 3^2\times {\mathrm{151}}^1\times {\mathrm{3863}}^1$

素因数の和:4024

約数の個数: 36

約数和(自身を含む): 53446848

約数和(自身を除く): 32447580

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 151, 302, 453, 604, 906, 1359, 1812, 2718, 3863, 5436, 7726, 11589, 15452, 23178, 34767, 46356, 69534, 139068, 583313, 1166626, 1749939, 2333252, 3499878, 5249817, 6999756, 10499634, 20999268]

約数ペア:

[(1, 20999268), (2, 10499634), (3, 6999756), (4, 5249817), (6, 3499878), (9, 2333252), (12, 1749939), (18, 1166626), (36, 583313), (151, 139068), (302, 69534), (453, 46356), (604, 34767), (906, 23178), (1359, 15452), (1812, 11589), (2718, 7726), (3863, 5436)]