18931429

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{379}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 21888000

約数和(自身を除く): 2956571

約数列:

[1, 11, 19, 209, 239, 379, 2629, 4169, 4541, 7201, 49951, 79211, 90581, 996391, 1721039, 18931429]

約数ペア:

[(1, 18931429), (11, 1721039), (19, 996391), (209, 90581), (239, 79211), (379, 49951), (2629, 7201), (4169, 4541)]