28521009

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2797}}^1$

素因数の和:2917

約数の個数: 24

約数和(自身を含む): 45394752

約数和(自身を除く): 16873743

約数列:

[1, 3, 9, 11, 33, 99, 103, 309, 927, 1133, 2797, 3399, 8391, 10197, 25173, 30767, 92301, 276903, 288091, 864273, 2592819, 3169001, 9507003, 28521009]

約数ペア:

[(1, 28521009), (3, 9507003), (9, 3169001), (11, 2592819), (33, 864273), (99, 288091), (103, 276903), (309, 92301), (927, 30767), (1133, 25173), (2797, 10197), (3399, 8391)]