21045145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1601}}^1$

素因数の和:1856

約数の個数: 16

約数和(自身を含む): 27682560

約数和(自身を除く): 6637415

約数列:

[1, 5, 11, 55, 239, 1195, 1601, 2629, 8005, 13145, 17611, 88055, 382639, 1913195, 4209029, 21045145]

約数ペア:

[(1, 21045145), (5, 4209029), (11, 1913195), (55, 382639), (239, 88055), (1195, 17611), (1601, 13145), (2629, 8005)]