20687564889

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1\times {\mathrm{1493}}^1$

素因数の和:1999

約数の個数: 64

約数和(自身を含む): 32683461120

約数和(自身を除く): 11995896231

約数列:

[1, 3, 9, 23, 27, 53, 69, 159, 207, 421, 477, 621, 1219, 1263, 1431, 1493, 3657, 3789, 4479, 9683, 10971, 11367, 13437, 22313, 29049, 32913, 34339, 40311, 66939, 79129, 87147, 103017, 200817, 237387, 261441, 309051, 513199, 602451, 628553, 712161, 927153, 1539597, 1819967, 1885659, 2136483, 4618791, 5459901, 5656977, 13856373, 14456719, 16379703, 16970931, 33313309, 43370157, 49139109, 99939927, 130110471, 299819781, 390331413, 766206107, 899459343, 2298618321, 6895854963, 20687564889]

約数ペア:

[(1, 20687564889), (3, 6895854963), (9, 2298618321), (23, 899459343), (27, 766206107), (53, 390331413), (69, 299819781), (159, 130110471), (207, 99939927), (421, 49139109), (477, 43370157), (621, 33313309), (1219, 16970931), (1263, 16379703), (1431, 14456719), (1493, 13856373), (3657, 5656977), (3789, 5459901), (4479, 4618791), (9683, 2136483), (10971, 1885659), (11367, 1819967), (13437, 1539597), (22313, 927153), (29049, 712161), (32913, 628553), (34339, 602451), (40311, 513199), (66939, 309051), (79129, 261441), (87147, 237387), (103017, 200817)]