20671088

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{701}}^1$

素因数の和:825

約数の個数: 40

約数和(自身を含む): 42653520

約数和(自身を除く): 21982432

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 97, 152, 194, 304, 388, 701, 776, 1402, 1552, 1843, 2804, 3686, 5608, 7372, 11216, 13319, 14744, 26638, 29488, 53276, 67997, 106552, 135994, 213104, 271988, 543976, 1087952, 1291943, 2583886, 5167772, 10335544, 20671088]

約数ペア:

[(1, 20671088), (2, 10335544), (4, 5167772), (8, 2583886), (16, 1291943), (19, 1087952), (38, 543976), (76, 271988), (97, 213104), (152, 135994), (194, 106552), (304, 67997), (388, 53276), (701, 29488), (776, 26638), (1402, 14744), (1552, 13319), (1843, 11216), (2804, 7372), (3686, 5608)]