28397271

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{241}}^1$

素因数の和:463

約数の個数: 32

約数和(自身を含む): 45101056

約数和(自身を除く): 16703785

約数列:

[1, 3, 7, 21, 31, 93, 181, 217, 241, 543, 651, 723, 1267, 1687, 3801, 5061, 5611, 7471, 16833, 22413, 39277, 43621, 52297, 117831, 130863, 156891, 305347, 916041, 1352251, 4056753, 9465757, 28397271]

約数ペア:

[(1, 28397271), (3, 9465757), (7, 4056753), (21, 1352251), (31, 916041), (93, 305347), (181, 156891), (217, 130863), (241, 117831), (543, 52297), (651, 43621), (723, 39277), (1267, 22413), (1687, 16833), (3801, 7471), (5061, 5611)]