491533

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:144

約数の個数: 16

約数和(自身を含む): 608256

約数和(自身を除く): 116723

約数列:

[1, 7, 23, 43, 71, 161, 301, 497, 989, 1633, 3053, 6923, 11431, 21371, 70219, 491533]

約数ペア:

[(1, 491533), (7, 70219), (23, 21371), (43, 11431), (71, 6923), (161, 3053), (301, 1633), (497, 989)]