25120809

素因数分解:

$3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{2203}}^1$

素因数の和:2397

約数の個数: 24

約数和(自身を含む): 41717312

約数和(自身を除く): 16596503

約数列:

[1, 3, 7, 9, 21, 63, 181, 543, 1267, 1629, 2203, 3801, 6609, 11403, 15421, 19827, 46263, 138789, 398743, 1196229, 2791201, 3588687, 8373603, 25120809]

約数ペア:

[(1, 25120809), (3, 8373603), (7, 3588687), (9, 2791201), (21, 1196229), (63, 398743), (181, 138789), (543, 46263), (1267, 19827), (1629, 15421), (2203, 11403), (3801, 6609)]