21060025

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7079}}^1$

素因数の和:7113

約数の個数: 24

約数和(自身を含む): 31605120

約数和(自身を除く): 10545095

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 7079, 35395, 49553, 120343, 176975, 247765, 601715, 842401, 1238825, 3008575, 4212005, 21060025]

約数ペア:

[(1, 21060025), (5, 4212005), (7, 3008575), (17, 1238825), (25, 842401), (35, 601715), (85, 247765), (119, 176975), (175, 120343), (425, 49553), (595, 35395), (2975, 7079)]