21182195

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3919}}^1$

素因数の和:3994

約数の個数: 16

約数和(自身を含む): 27095040

約数和(自身を除く): 5912845

約数列:

[1, 5, 23, 47, 115, 235, 1081, 3919, 5405, 19595, 90137, 184193, 450685, 920965, 4236439, 21182195]

約数ペア:

[(1, 21182195), (5, 4236439), (23, 920965), (47, 450685), (115, 184193), (235, 90137), (1081, 19595), (3919, 5405)]