21352941

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{647}}^1$

素因数の和:865

約数の個数: 24

約数和(自身を含む): 32685120

約数和(自身を除く): 11332179

約数列:

[1, 3, 9, 19, 57, 171, 193, 579, 647, 1737, 1941, 3667, 5823, 11001, 12293, 33003, 36879, 110637, 124871, 374613, 1123839, 2372549, 7117647, 21352941]

約数ペア:

[(1, 21352941), (3, 7117647), (9, 2372549), (19, 1123839), (57, 374613), (171, 124871), (193, 110637), (579, 36879), (647, 33003), (1737, 12293), (1941, 11001), (3667, 5823)]