28406763

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{229}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 51667200

約数和(自身を除く): 23260437

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 179, 229, 231, 537, 687, 693, 1253, 1603, 1611, 1969, 2061, 2519, 3759, 4809, 5907, 7557, 11277, 13783, 14427, 17633, 17721, 22671, 40991, 41349, 52899, 122973, 124047, 158697, 286937, 368919, 450901, 860811, 1352703, 2582433, 3156307, 4058109, 9468921, 28406763]

約数ペア:

[(1, 28406763), (3, 9468921), (7, 4058109), (9, 3156307), (11, 2582433), (21, 1352703), (33, 860811), (63, 450901), (77, 368919), (99, 286937), (179, 158697), (229, 124047), (231, 122973), (537, 52899), (687, 41349), (693, 40991), (1253, 22671), (1603, 17721), (1611, 17633), (1969, 14427), (2061, 13783), (2519, 11277), (3759, 7557), (4809, 5907)]