19052005

素因数分解:

$5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{2441}}^1$

素因数の和:2676

約数の個数: 16

約数和(自身を含む): 26256384

約数和(自身を除く): 7204379

約数列:

[1, 5, 7, 35, 223, 1115, 1561, 2441, 7805, 12205, 17087, 85435, 544343, 2721715, 3810401, 19052005]

約数ペア:

[(1, 19052005), (5, 3810401), (7, 2721715), (35, 544343), (223, 85435), (1115, 17087), (1561, 12205), (2441, 7805)]