1991314456

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{1747}}^1\times {\mathrm{7499}}^1$

素因数の和:9271

約数の個数: 32

約数和(自身を含む): 3933000000

約数和(自身を除く): 1941685544

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 1747, 3494, 6988, 7499, 13976, 14998, 29996, 33193, 59992, 66386, 132772, 142481, 265544, 284962, 569924, 1139848, 13100753, 26201506, 52403012, 104806024, 248914307, 497828614, 995657228, 1991314456]

約数ペア:

[(1, 1991314456), (2, 995657228), (4, 497828614), (8, 248914307), (19, 104806024), (38, 52403012), (76, 26201506), (152, 13100753), (1747, 1139848), (3494, 569924), (6988, 284962), (7499, 265544), (13976, 142481), (14998, 132772), (29996, 66386), (33193, 59992)]