21570208

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{263}}^1$

素因数の和:517

約数の個数: 48

約数和(自身を含む): 46702656

約数和(自身を除く): 25132448

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 233, 263, 352, 466, 526, 932, 1052, 1864, 2104, 2563, 2893, 3728, 4208, 5126, 5786, 7456, 8416, 10252, 11572, 20504, 23144, 41008, 46288, 61279, 82016, 92576, 122558, 245116, 490232, 674069, 980464, 1348138, 1960928, 2696276, 5392552, 10785104, 21570208]

約数ペア:

[(1, 21570208), (2, 10785104), (4, 5392552), (8, 2696276), (11, 1960928), (16, 1348138), (22, 980464), (32, 674069), (44, 490232), (88, 245116), (176, 122558), (233, 92576), (263, 82016), (352, 61279), (466, 46288), (526, 41008), (932, 23144), (1052, 20504), (1864, 11572), (2104, 10252), (2563, 8416), (2893, 7456), (3728, 5786), (4208, 5126)]