19765025

素因数分解:

$5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2131}}^1$

素因数の和:2201

約数の個数: 24

約数和(自身を含む): 28551744

約数和(自身を除く): 8786719

約数列:

[1, 5, 7, 25, 35, 53, 175, 265, 371, 1325, 1855, 2131, 9275, 10655, 14917, 53275, 74585, 112943, 372925, 564715, 790601, 2823575, 3953005, 19765025]

約数ペア:

[(1, 19765025), (5, 3953005), (7, 2823575), (25, 790601), (35, 564715), (53, 372925), (175, 112943), (265, 74585), (371, 53275), (1325, 14917), (1855, 10655), (2131, 9275)]