128499238

素因数分解:

$2^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{20719}}^1$

素因数の和:21171

約数の個数: 16

約数和(自身を含む): 220792320

約数和(自身を除く): 92293082

約数列:

[1, 2, 7, 14, 443, 886, 3101, 6202, 20719, 41438, 145033, 290066, 9178517, 18357034, 64249619, 128499238]

約数ペア:

[(1, 128499238), (2, 64249619), (7, 18357034), (14, 9178517), (443, 290066), (886, 145033), (3101, 41438), (6202, 20719)]