28910259

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 50079744

約数和(自身を除く): 21169485

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 113, 131, 217, 279, 339, 393, 651, 791, 917, 1017, 1179, 1953, 2373, 2751, 3503, 4061, 7119, 8253, 10509, 12183, 14803, 24521, 28427, 31527, 36549, 44409, 73563, 85281, 103621, 133227, 220689, 255843, 310863, 458893, 932589, 1376679, 3212251, 4130037, 9636753, 28910259]

約数ペア:

[(1, 28910259), (3, 9636753), (7, 4130037), (9, 3212251), (21, 1376679), (31, 932589), (63, 458893), (93, 310863), (113, 255843), (131, 220689), (217, 133227), (279, 103621), (339, 85281), (393, 73563), (651, 44409), (791, 36549), (917, 31527), (1017, 28427), (1179, 24521), (1953, 14803), (2373, 12183), (2751, 10509), (3503, 8253), (4061, 7119)]