16720974

素因数分解:

$2^1\times 3^2\times {\mathrm{521}}^1\times {\mathrm{1783}}^1$

素因数の和:2312

約数の個数: 24

約数和(自身を含む): 36318672

約数和(自身を除く): 19597698

約数列:

[1, 2, 3, 6, 9, 18, 521, 1042, 1563, 1783, 3126, 3566, 4689, 5349, 9378, 10698, 16047, 32094, 928943, 1857886, 2786829, 5573658, 8360487, 16720974]

約数ペア:

[(1, 16720974), (2, 8360487), (3, 5573658), (6, 2786829), (9, 1857886), (18, 928943), (521, 32094), (1042, 16047), (1563, 10698), (1783, 9378), (3126, 5349), (3566, 4689)]