19899724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{22511}}^1$

素因数の和:22545

約数の個数: 24

約数和(自身を含む): 39711168

約数和(自身を除く): 19811444

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 22511, 45022, 90044, 292643, 382687, 585286, 765374, 1170572, 1530748, 4974931, 9949862, 19899724]

約数ペア:

[(1, 19899724), (2, 9949862), (4, 4974931), (13, 1530748), (17, 1170572), (26, 765374), (34, 585286), (52, 382687), (68, 292643), (221, 90044), (442, 45022), (884, 22511)]