21906590

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59207}}^1$

素因数の和:59251

約数の個数: 16

約数和(自身を含む): 40498272

約数和(自身を除く): 18591682

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 59207, 118414, 296035, 592070, 2190659, 4381318, 10953295, 21906590]

約数ペア:

[(1, 21906590), (2, 10953295), (5, 4381318), (10, 2190659), (37, 592070), (74, 296035), (185, 118414), (370, 59207)]