19868849

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{863}}^1$

素因数の和:917

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 8000335

約数列:

[1, 7, 11, 13, 23, 77, 91, 143, 161, 253, 299, 863, 1001, 1771, 2093, 3289, 6041, 9493, 11219, 19849, 23023, 66451, 78533, 123409, 138943, 218339, 258037, 863863, 1528373, 1806259, 2838407, 19868849]

約数ペア:

[(1, 19868849), (7, 2838407), (11, 1806259), (13, 1528373), (23, 863863), (77, 258037), (91, 218339), (143, 138943), (161, 123409), (253, 78533), (299, 66451), (863, 23023), (1001, 19849), (1771, 11219), (2093, 9493), (3289, 6041)]