20898636

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 55189680

約数和(自身を除く): 34291044

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 37, 44, 66, 74, 111, 121, 132, 148, 222, 242, 363, 389, 407, 444, 484, 726, 778, 814, 1167, 1221, 1452, 1556, 1628, 2334, 2442, 4279, 4477, 4668, 4884, 8558, 8954, 12837, 13431, 14393, 17116, 17908, 25674, 26862, 28786, 43179, 47069, 51348, 53724, 57572, 86358, 94138, 141207, 158323, 172716, 188276, 282414, 316646, 474969, 564828, 633292, 949938, 1741553, 1899876, 3483106, 5224659, 6966212, 10449318, 20898636]

約数ペア:

[(1, 20898636), (2, 10449318), (3, 6966212), (4, 5224659), (6, 3483106), (11, 1899876), (12, 1741553), (22, 949938), (33, 633292), (37, 564828), (44, 474969), (66, 316646), (74, 282414), (111, 188276), (121, 172716), (132, 158323), (148, 141207), (222, 94138), (242, 86358), (363, 57572), (389, 53724), (407, 51348), (444, 47069), (484, 43179), (726, 28786), (778, 26862), (814, 25674), (1167, 17908), (1221, 17116), (1452, 14393), (1556, 13431), (1628, 12837), (2334, 8954), (2442, 8558), (4279, 4884), (4477, 4668)]