20164529

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:234

約数の個数: 36

約数和(自身を含む): 27291600

約数和(自身を除く): 7127071

約数列:

[1, 7, 11, 19, 49, 77, 121, 133, 179, 209, 539, 847, 931, 1253, 1463, 1969, 2299, 3401, 5929, 8771, 10241, 13783, 16093, 21659, 23807, 37411, 96481, 112651, 151613, 166649, 261877, 411521, 1061291, 1833139, 2880647, 20164529]

約数ペア:

[(1, 20164529), (7, 2880647), (11, 1833139), (19, 1061291), (49, 411521), (77, 261877), (121, 166649), (133, 151613), (179, 112651), (209, 96481), (539, 37411), (847, 23807), (931, 21659), (1253, 16093), (1463, 13783), (1969, 10241), (2299, 8771), (3401, 5929)]