21963507

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{3391}}^1$

素因数の和:3538

約数の個数: 16

約数和(自身を含む): 31260672

約数和(自身を除く): 9297165

約数列:

[1, 3, 17, 51, 127, 381, 2159, 3391, 6477, 10173, 57647, 172941, 430657, 1291971, 7321169, 21963507]

約数ペア:

[(1, 21963507), (3, 7321169), (17, 1291971), (51, 430657), (127, 172941), (381, 57647), (2159, 10173), (3391, 6477)]