257029377921

素因数分解:

$3^2\times {\mathrm{613}}^2\times {\mathrm{76001}}^1$

素因数の和:77233

約数の個数: 18

約数和(自身を含む): 371876189958

約数和(自身を除く): 114846812037

約数列:

[1, 3, 9, 613, 1839, 5517, 76001, 228003, 375769, 684009, 1127307, 3381921, 46588613, 139765839, 419297517, 28558819769, 85676459307, 257029377921]

約数ペア:

[(1, 257029377921), (3, 85676459307), (9, 28558819769), (613, 419297517), (1839, 139765839), (5517, 46588613), (76001, 3381921), (228003, 1127307), (375769, 684009)]