21498778

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{877}}^1$

素因数の和:1006

約数の個数: 32

約数和(自身を含む): 39446784

約数和(自身を除く): 17948006

約数列:

[1, 2, 7, 14, 17, 34, 103, 119, 206, 238, 721, 877, 1442, 1751, 1754, 3502, 6139, 12257, 12278, 14909, 24514, 29818, 90331, 104363, 180662, 208726, 632317, 1264634, 1535627, 3071254, 10749389, 21498778]

約数ペア:

[(1, 21498778), (2, 10749389), (7, 3071254), (14, 1535627), (17, 1264634), (34, 632317), (103, 208726), (119, 180662), (206, 104363), (238, 90331), (721, 29818), (877, 24514), (1442, 14909), (1751, 12278), (1754, 12257), (3502, 6139)]