18005425

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 23141376

約数和(自身を除く): 5135951

約数列:

[1, 5, 25, 53, 107, 127, 265, 535, 635, 1325, 2675, 3175, 5671, 6731, 13589, 28355, 33655, 67945, 141775, 168275, 339725, 720217, 3601085, 18005425]

約数ペア:

[(1, 18005425), (5, 3601085), (25, 720217), (53, 339725), (107, 168275), (127, 141775), (265, 67945), (535, 33655), (635, 28355), (1325, 13589), (2675, 6731), (3175, 5671)]