21420590

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{93133}}^1$

素因数の和:93163

約数の個数: 16

約数和(自身を含む): 40233888

約数和(自身を除く): 18813298

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 93133, 186266, 465665, 931330, 2142059, 4284118, 10710295, 21420590]

約数ペア:

[(1, 21420590), (2, 10710295), (5, 4284118), (10, 2142059), (23, 931330), (46, 465665), (115, 186266), (230, 93133)]