21088195

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{4723}}^1$

素因数の和:4794

約数の個数: 16

約数和(自身を含む): 27210240

約数和(自身を除く): 6122045

約数列:

[1, 5, 19, 47, 95, 235, 893, 4465, 4723, 23615, 89737, 221981, 448685, 1109905, 4217639, 21088195]

約数ペア:

[(1, 21088195), (5, 4217639), (19, 1109905), (47, 448685), (95, 221981), (235, 89737), (893, 23615), (4465, 4723)]