20711287

素因数分解:

${\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 22643712

約数和(自身を除く): 1932425

約数列:

[1, 17, 53, 127, 181, 901, 2159, 3077, 6731, 9593, 22987, 114427, 163081, 390779, 1218311, 20711287]

約数ペア:

[(1, 20711287), (17, 1218311), (53, 390779), (127, 163081), (181, 114427), (901, 22987), (2159, 9593), (3077, 6731)]