20685736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1709}}^1$

素因数の和:1821

約数の個数: 32

約数和(自身を含む): 41553000

約数和(自身を除く): 20867264

約数列:

[1, 2, 4, 8, 17, 34, 68, 89, 136, 178, 356, 712, 1513, 1709, 3026, 3418, 6052, 6836, 12104, 13672, 29053, 58106, 116212, 152101, 232424, 304202, 608404, 1216808, 2585717, 5171434, 10342868, 20685736]

約数ペア:

[(1, 20685736), (2, 10342868), (4, 5171434), (8, 2585717), (17, 1216808), (34, 608404), (68, 304202), (89, 232424), (136, 152101), (178, 116212), (356, 58106), (712, 29053), (1513, 13672), (1709, 12104), (3026, 6836), (3418, 6052)]