20513339

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{15671}}^1$

素因数の和:15706

約数の個数: 16

約数和(自身を含む): 27081216

約数和(自身を除く): 6567877

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 15671, 109697, 172381, 266407, 1206667, 1864849, 2930477, 20513339]

約数ペア:

[(1, 20513339), (7, 2930477), (11, 1864849), (17, 1206667), (77, 266407), (119, 172381), (187, 109697), (1309, 15671)]