21116397

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9629}}^1$

素因数の和:9692

約数の個数: 16

約数和(自身を含む): 30507840

約数和(自身を除く): 9391443

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9629, 28887, 163693, 414047, 491079, 1242141, 7038799, 21116397]

約数ペア:

[(1, 21116397), (3, 7038799), (17, 1242141), (43, 491079), (51, 414047), (129, 163693), (731, 28887), (2193, 9629)]