21761230

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{4957}}^1$

素因数の和:5403

約数の個数: 16

約数和(自身を含む): 39267360

約数和(自身を除く): 17506130

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 4957, 9914, 24785, 49570, 2176123, 4352246, 10880615, 21761230]

約数ペア:

[(1, 21761230), (2, 10880615), (5, 4352246), (10, 2176123), (439, 49570), (878, 24785), (2195, 9914), (4390, 4957)]