21790185

素因数分解:

$3^1\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{1409}}^1$

素因数の和:2448

約数の個数: 16

約数和(自身を含む): 34922880

約数和(自身を除く): 13132695

約数列:

[1, 3, 5, 15, 1031, 1409, 3093, 4227, 5155, 7045, 15465, 21135, 1452679, 4358037, 7263395, 21790185]

約数ペア:

[(1, 21790185), (3, 7263395), (5, 4358037), (15, 1452679), (1031, 21135), (1409, 15465), (3093, 7045), (4227, 5155)]