20551785

素因数分解:

$3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{3121}}^1$

素因数の和:3568

約数の個数: 16

約数和(自身を含む): 32968320

約数和(自身を除く): 12416535

約数列:

[1, 3, 5, 15, 439, 1317, 2195, 3121, 6585, 9363, 15605, 46815, 1370119, 4110357, 6850595, 20551785]

約数ペア:

[(1, 20551785), (3, 6850595), (5, 4110357), (15, 1370119), (439, 46815), (1317, 15605), (2195, 9363), (3121, 6585)]