18913995

素因数分解:

$3^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1109}}^1$

素因数の和:1499

約数の個数: 24

約数和(自身を含む): 32900400

約数和(自身を除く): 13986405

約数列:

[1, 3, 5, 9, 15, 45, 379, 1109, 1137, 1895, 3327, 3411, 5545, 5685, 9981, 16635, 17055, 49905, 420311, 1260933, 2101555, 3782799, 6304665, 18913995]

約数ペア:

[(1, 18913995), (3, 6304665), (5, 3782799), (9, 2101555), (15, 1260933), (45, 420311), (379, 49905), (1109, 17055), (1137, 16635), (1895, 9981), (3327, 5685), (3411, 5545)]