21345328

素因数分解:

$2^4\times {\mathrm{823}}^1\times {\mathrm{1621}}^1$

素因数の和:2452

約数の個数: 20

約数和(自身を含む): 41432368

約数和(自身を除く): 20087040

約数列:

[1, 2, 4, 8, 16, 823, 1621, 1646, 3242, 3292, 6484, 6584, 12968, 13168, 25936, 1334083, 2668166, 5336332, 10672664, 21345328]

約数ペア:

[(1, 21345328), (2, 10672664), (4, 5336332), (8, 2668166), (16, 1334083), (823, 25936), (1621, 13168), (1646, 12968), (3242, 6584), (3292, 6484)]