21513356

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{233}}^1\times {\mathrm{563}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 38800944

約数和(自身を除く): 17287588

約数列:

[1, 2, 4, 41, 82, 164, 233, 466, 563, 932, 1126, 2252, 9553, 19106, 23083, 38212, 46166, 92332, 131179, 262358, 524716, 5378339, 10756678, 21513356]

約数ペア:

[(1, 21513356), (2, 10756678), (4, 5378339), (41, 524716), (82, 262358), (164, 131179), (233, 92332), (466, 46166), (563, 38212), (932, 23083), (1126, 19106), (2252, 9553)]