28740271

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{1303}}^1$

素因数の和:1470

約数の個数: 16

約数和(自身を含む): 34550784

約数和(自身を除く): 5810513

約数列:

[1, 7, 23, 137, 161, 959, 1303, 3151, 9121, 22057, 29969, 178511, 209783, 1249577, 4105753, 28740271]

約数ペア:

[(1, 28740271), (7, 4105753), (23, 1249577), (137, 209783), (161, 178511), (959, 29969), (1303, 22057), (3151, 9121)]