20806156

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{5851}}^1$

素因数の和:5989

約数の個数: 24

約数和(自身を含む): 41947136

約数和(自身を除く): 21140980

約数列:

[1, 2, 4, 7, 14, 28, 127, 254, 508, 889, 1778, 3556, 5851, 11702, 23404, 40957, 81914, 163828, 743077, 1486154, 2972308, 5201539, 10403078, 20806156]

約数ペア:

[(1, 20806156), (2, 10403078), (4, 5201539), (7, 2972308), (14, 1486154), (28, 743077), (127, 163828), (254, 81914), (508, 40957), (889, 23404), (1778, 11702), (3556, 5851)]