21930865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2203}}^1$

素因数の和:2400

約数の個数: 16

約数和(自身を含む): 28881216

約数和(自身を除く): 6950351

約数列:

[1, 5, 11, 55, 181, 905, 1991, 2203, 9955, 11015, 24233, 121165, 398743, 1993715, 4386173, 21930865]

約数ペア:

[(1, 21930865), (5, 4386173), (11, 1993715), (55, 398743), (181, 121165), (905, 24233), (1991, 11015), (2203, 9955)]