28028247

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 42147840

約数和(自身を除く): 14119593

約数列:

[1, 3, 13, 31, 39, 93, 97, 239, 291, 403, 717, 1209, 1261, 3007, 3107, 3783, 7409, 9021, 9321, 22227, 23183, 39091, 69549, 96317, 117273, 288951, 301379, 718673, 904137, 2156019, 9342749, 28028247]

約数ペア:

[(1, 28028247), (3, 9342749), (13, 2156019), (31, 904137), (39, 718673), (93, 301379), (97, 288951), (239, 117273), (291, 96317), (403, 69549), (717, 39091), (1209, 23183), (1261, 22227), (3007, 9321), (3107, 9021), (3783, 7409)]