997479

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 1677312

約数和(自身を除く): 679833

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 223, 497, 639, 669, 1491, 1561, 2007, 4473, 4683, 14049, 15833, 47499, 110831, 142497, 332493, 997479]

約数ペア:

[(1, 997479), (3, 332493), (7, 142497), (9, 110831), (21, 47499), (63, 15833), (71, 14049), (213, 4683), (223, 4473), (497, 2007), (639, 1561), (669, 1491)]