21092290

素因数分解:

$2^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{7841}}^1$

素因数の和:8117

約数の個数: 16

約数和(自身を含む): 38112120

約数和(自身を除く): 17019830

約数列:

[1, 2, 5, 10, 269, 538, 1345, 2690, 7841, 15682, 39205, 78410, 2109229, 4218458, 10546145, 21092290]

約数ペア:

[(1, 21092290), (2, 10546145), (5, 4218458), (10, 2109229), (269, 78410), (538, 39205), (1345, 15682), (2690, 7841)]