21666381

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{3511}}^1$

素因数の和:3553

約数の個数: 24

約数和(自身を含む): 33630912

約数和(自身を除く): 11964531

約数列:

[1, 3, 11, 17, 33, 51, 121, 187, 363, 561, 2057, 3511, 6171, 10533, 38621, 59687, 115863, 179061, 424831, 656557, 1274493, 1969671, 7222127, 21666381]

約数ペア:

[(1, 21666381), (3, 7222127), (11, 1969671), (17, 1274493), (33, 656557), (51, 424831), (121, 179061), (187, 115863), (363, 59687), (561, 38621), (2057, 10533), (3511, 6171)]