20163772811

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1\times {\mathrm{857}}^1$

素因数の和:1188

約数の個数: 64

約数和(自身を含む): 26817702912

約数和(自身を除く): 6653930101

約数列:

[1, 7, 13, 17, 67, 91, 119, 221, 227, 469, 857, 871, 1139, 1547, 1589, 2951, 3859, 5999, 6097, 7973, 11141, 14569, 14807, 15209, 20657, 27013, 50167, 57419, 77987, 101983, 103649, 106463, 189397, 194539, 197717, 258553, 351169, 401933, 746447, 976123, 1325779, 1361773, 1384019, 1809871, 2529007, 3307163, 3361189, 5225129, 6832861, 12689599, 13034113, 17703049, 23150141, 23528323, 42993119, 88827193, 91238791, 169443469, 221579921, 300951833, 1186104283, 1551059447, 2880538973, 20163772811]

約数ペア:

[(1, 20163772811), (7, 2880538973), (13, 1551059447), (17, 1186104283), (67, 300951833), (91, 221579921), (119, 169443469), (221, 91238791), (227, 88827193), (469, 42993119), (857, 23528323), (871, 23150141), (1139, 17703049), (1547, 13034113), (1589, 12689599), (2951, 6832861), (3859, 5225129), (5999, 3361189), (6097, 3307163), (7973, 2529007), (11141, 1809871), (14569, 1384019), (14807, 1361773), (15209, 1325779), (20657, 976123), (27013, 746447), (50167, 401933), (57419, 351169), (77987, 258553), (101983, 197717), (103649, 194539), (106463, 189397)]