20162785.000000000

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{3457}}^1$

素因数の和:3519

約数の個数: 48

約数和(自身を含む): 353213952

約数和(自身を除く): 171673054

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 121, 154, 217, 242, 341, 434, 682, 847, 1694, 2387, 3457, 3751, 4774, 6914, 7502, 24199, 26257, 38027, 48398, 52514, 76054, 107167, 214334, 266189, 418297, 532378, 750169, 836594, 1178837, 1500338, 2357674, 2928079, 5856158, 8251859, 12967207, 16503718, 25934414, 90770449, 181540898]

約数ペア:

[(1, 181540898), (2, 90770449), (7, 25934414), (11, 16503718), (14, 12967207), (22, 8251859), (31, 5856158), (62, 2928079), (77, 2357674), (121, 1500338), (154, 1178837), (217, 836594), (242, 750169), (341, 532378), (434, 418297), (682, 266189), (847, 214334), (1694, 107167), (2387, 76054), (3457, 52514), (3751, 48398), (4774, 38027), (6914, 26257), (7502, 24199)]