16987075

素因数分解:

$5^2\times 7^4\times {\mathrm{283}}^1$

素因数の和:321

約数の個数: 30

約数和(自身を含む): 24660004

約数和(自身を除く): 7672929

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 283, 343, 1225, 1415, 1715, 1981, 2401, 7075, 8575, 9905, 12005, 13867, 49525, 60025, 69335, 97069, 346675, 485345, 679483, 2426725, 3397415, 16987075]

約数ペア:

[(1, 16987075), (5, 3397415), (7, 2426725), (25, 679483), (35, 485345), (49, 346675), (175, 97069), (245, 69335), (283, 60025), (343, 49525), (1225, 13867), (1415, 12005), (1715, 9905), (1981, 8575), (2401, 7075)]