1947156921

素因数分解:

$3^3\times {\mathrm{541}}^1\times {\mathrm{133303}}^1$

素因数の和:133853

約数の個数: 16

約数和(自身を含む): 2890030720

約数和(自身を除く): 942873799

約数列:

[1, 3, 9, 27, 541, 1623, 4869, 14607, 133303, 399909, 1199727, 3599181, 72116923, 216350769, 649052307, 1947156921]

約数ペア:

[(1, 1947156921), (3, 649052307), (9, 216350769), (27, 72116923), (541, 3599181), (1623, 1199727), (4869, 399909), (14607, 133303)]