19925425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1657}}^1$

素因数の和:1717

約数の個数: 24

約数和(自身を含む): 27343736

約数和(自身を除く): 7418311

約数列:

[1, 5, 13, 25, 37, 65, 185, 325, 481, 925, 1657, 2405, 8285, 12025, 21541, 41425, 61309, 107705, 306545, 538525, 797017, 1532725, 3985085, 19925425]

約数ペア:

[(1, 19925425), (5, 3985085), (13, 1532725), (25, 797017), (37, 538525), (65, 306545), (185, 107705), (325, 61309), (481, 41425), (925, 21541), (1657, 12025), (2405, 8285)]