20978678623

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{463}}^1\times {\mathrm{1091}}^1$

素因数の和:1927

約数の個数: 32

約数和(自身を含む): 25537075200

約数和(自身を除く): 4558396577

約数列:

[1, 7, 17, 119, 349, 463, 1091, 2443, 3241, 5933, 7637, 7871, 18547, 41531, 55097, 129829, 161587, 380759, 505133, 1131109, 2665313, 2746979, 3535931, 6472903, 8587261, 19228853, 45310321, 60110827, 176291417, 1234039919, 2996954089, 20978678623]

約数ペア:

[(1, 20978678623), (7, 2996954089), (17, 1234039919), (119, 176291417), (349, 60110827), (463, 45310321), (1091, 19228853), (2443, 8587261), (3241, 6472903), (5933, 3535931), (7637, 2746979), (7871, 2665313), (18547, 1131109), (41531, 505133), (55097, 380759), (129829, 161587)]