21542637

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2719}}^1$

素因数の和:2880

約数の個数: 16

約数和(自身を含む): 30464000

約数和(自身を除く): 8921363

約数列:

[1, 3, 19, 57, 139, 417, 2641, 2719, 7923, 8157, 51661, 154983, 377941, 1133823, 7180879, 21542637]

約数ペア:

[(1, 21542637), (3, 7180879), (19, 1133823), (57, 377941), (139, 154983), (417, 51661), (2641, 8157), (2719, 7923)]