21154105

素因数分解:

$5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1931}}^1$

素因数の和:2256

約数の個数: 16

約数和(自身を含む): 29119104

約数和(自身を除く): 7964999

約数列:

[1, 5, 7, 35, 313, 1565, 1931, 2191, 9655, 10955, 13517, 67585, 604403, 3022015, 4230821, 21154105]

約数ペア:

[(1, 21154105), (5, 4230821), (7, 3022015), (35, 604403), (313, 67585), (1565, 13517), (1931, 10955), (2191, 9655)]