21438428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{28661}}^1$

素因数の和:28693

約数の個数: 24

約数和(自身を含む): 43336944

約数和(自身を除く): 21898516

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 28661, 57322, 114644, 315271, 487237, 630542, 974474, 1261084, 1948948, 5359607, 10719214, 21438428]

約数ペア:

[(1, 21438428), (2, 10719214), (4, 5359607), (11, 1948948), (17, 1261084), (22, 974474), (34, 630542), (44, 487237), (68, 315271), (187, 114644), (374, 57322), (748, 28661)]