20653963

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 24535440

約数和(自身を除く): 3881477

約数列:

[1, 11, 17, 73, 89, 187, 289, 803, 979, 1241, 1513, 3179, 6497, 13651, 16643, 21097, 25721, 71467, 110449, 232067, 282931, 1214939, 1877633, 20653963]

約数ペア:

[(1, 20653963), (11, 1877633), (17, 1214939), (73, 282931), (89, 232067), (187, 110449), (289, 71467), (803, 25721), (979, 21097), (1241, 16643), (1513, 13651), (3179, 6497)]