18897415

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{2459}}^1$

素因数の和:2546

約数の個数: 16

約数和(自身を含む): 23911200

約数和(自身を除く): 5013785

約数列:

[1, 5, 29, 53, 145, 265, 1537, 2459, 7685, 12295, 71311, 130327, 356555, 651635, 3779483, 18897415]

約数ペア:

[(1, 18897415), (5, 3779483), (29, 651635), (53, 356555), (145, 130327), (265, 71311), (1537, 12295), (2459, 7685)]