21123477

素因数分解:

$3^3\times {\mathrm{401}}^1\times {\mathrm{1951}}^1$

素因数の和:2361

約数の個数: 16

約数和(自身を含む): 31388160

約数和(自身を除く): 10264683

約数列:

[1, 3, 9, 27, 401, 1203, 1951, 3609, 5853, 10827, 17559, 52677, 782351, 2347053, 7041159, 21123477]

約数ペア:

[(1, 21123477), (3, 7041159), (9, 2347053), (27, 782351), (401, 52677), (1203, 17559), (1951, 10827), (3609, 5853)]