13381473

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{991}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 20443136

約数和(自身を除く): 7061663

約数列:

[1, 3, 7, 21, 643, 991, 1929, 2973, 4501, 6937, 13503, 20811, 637213, 1911639, 4460491, 13381473]

約数ペア:

[(1, 13381473), (3, 4460491), (7, 1911639), (21, 637213), (643, 20811), (991, 13503), (1929, 6937), (2973, 4501)]