20213331856

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{2729}}^1\times {\mathrm{7589}}^1$

素因数の和:10387

約数の個数: 40

約数和(自身を含む): 39825185400

約数和(自身を除く): 19611853544

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 2729, 5458, 7589, 10916, 15178, 21832, 30356, 43664, 60712, 121424, 166469, 332938, 462929, 665876, 925858, 1331752, 1851716, 2663504, 3703432, 7406864, 20710381, 41420762, 82841524, 165683048, 331366096, 1263333241, 2526666482, 5053332964, 10106665928, 20213331856]

約数ペア:

[(1, 20213331856), (2, 10106665928), (4, 5053332964), (8, 2526666482), (16, 1263333241), (61, 331366096), (122, 165683048), (244, 82841524), (488, 41420762), (976, 20710381), (2729, 7406864), (5458, 3703432), (7589, 2663504), (10916, 1851716), (15178, 1331752), (21832, 925858), (30356, 665876), (43664, 462929), (60712, 332938), (121424, 166469)]