21044555

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 30927744

約数和(自身を除く): 9883189

約数列:

[1, 5, 7, 17, 35, 85, 113, 119, 313, 565, 595, 791, 1565, 1921, 2191, 3955, 5321, 9605, 10955, 13447, 26605, 35369, 37247, 67235, 176845, 186235, 247583, 601273, 1237915, 3006365, 4208911, 21044555]

約数ペア:

[(1, 21044555), (5, 4208911), (7, 3006365), (17, 1237915), (35, 601273), (85, 247583), (113, 186235), (119, 176845), (313, 67235), (565, 37247), (595, 35369), (791, 26605), (1565, 13447), (1921, 10955), (2191, 9605), (3955, 5321)]