21083859

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{137803}}^1$

素因数の和:137826

約数の個数: 12

約数和(自身を含む): 32246136

約数和(自身を除く): 11162277

約数列:

[1, 3, 9, 17, 51, 153, 137803, 413409, 1240227, 2342651, 7027953, 21083859]

約数ペア:

[(1, 21083859), (3, 7027953), (9, 2342651), (17, 1240227), (51, 413409), (153, 137803)]