18868325

素因数分解:

$5^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{787}}^1$

素因数の和:941

約数の個数: 24

約数和(自身を含む): 26968512

約数和(自身を除く): 8100187

約数列:

[1, 5, 7, 25, 35, 137, 175, 685, 787, 959, 3425, 3935, 4795, 5509, 19675, 23975, 27545, 107819, 137725, 539095, 754733, 2695475, 3773665, 18868325]

約数ペア:

[(1, 18868325), (5, 3773665), (7, 2695475), (25, 754733), (35, 539095), (137, 137725), (175, 107819), (685, 27545), (787, 23975), (959, 19675), (3425, 5509), (3935, 4795)]