81807621

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{229153}}^1$

素因数の和:229180

約数の個数: 16

約数和(自身を含む): 131992704

約数和(自身を除く): 50185083

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 229153, 687459, 1604071, 3895601, 4812213, 11686803, 27269207, 81807621]

約数ペア:

[(1, 81807621), (3, 27269207), (7, 11686803), (17, 4812213), (21, 3895601), (51, 1604071), (119, 687459), (357, 229153)]