21997670

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{17321}}^1$

素因数の和:17455

約数の個数: 16

約数和(自身を含む): 39909888

約数和(自身を除く): 17912218

約数列:

[1, 2, 5, 10, 127, 254, 635, 1270, 17321, 34642, 86605, 173210, 2199767, 4399534, 10998835, 21997670]

約数ペア:

[(1, 21997670), (2, 10998835), (5, 4399534), (10, 2199767), (127, 173210), (254, 86605), (635, 34642), (1270, 17321)]