620361

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 1052480

約数和(自身を除く): 432119

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 229, 301, 387, 687, 903, 1603, 2061, 2709, 4809, 9847, 14427, 29541, 68929, 88623, 206787, 620361]

約数ペア:

[(1, 620361), (3, 206787), (7, 88623), (9, 68929), (21, 29541), (43, 14427), (63, 9847), (129, 4809), (229, 2709), (301, 2061), (387, 1603), (687, 903)]