18897025

素因数分解:

$5^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1301}}^1$

素因数の和:1401

約数の個数: 24

約数和(自身を含む): 27123264

約数和(自身を除く): 8226239

約数列:

[1, 5, 7, 25, 35, 83, 175, 415, 581, 1301, 2075, 2905, 6505, 9107, 14525, 32525, 45535, 107983, 227675, 539915, 755881, 2699575, 3779405, 18897025]

約数ペア:

[(1, 18897025), (5, 3779405), (7, 2699575), (25, 755881), (35, 539915), (83, 227675), (175, 107983), (415, 45535), (581, 32525), (1301, 14525), (2075, 9107), (2905, 6505)]