20597863

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 26429760

約数和(自身を除く): 5831897

約数列:

[1, 11, 13, 17, 37, 143, 187, 221, 229, 407, 481, 629, 2431, 2519, 2977, 3893, 5291, 6919, 8177, 8473, 32747, 42823, 50609, 89947, 93203, 110149, 144041, 556699, 1211639, 1584451, 1872533, 20597863]

約数ペア:

[(1, 20597863), (11, 1872533), (13, 1584451), (17, 1211639), (37, 556699), (143, 144041), (187, 110149), (221, 93203), (229, 89947), (407, 50609), (481, 42823), (629, 32747), (2431, 8473), (2519, 8177), (2977, 6919), (3893, 5291)]