663964

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1031}}^1$

素因数の和:1065

約数の個数: 24

約数和(自身を含む): 1387008

約数和(自身を除く): 723044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 1031, 2062, 4124, 7217, 14434, 23713, 28868, 47426, 94852, 165991, 331982, 663964]

約数ペア:

[(1, 663964), (2, 331982), (4, 165991), (7, 94852), (14, 47426), (23, 28868), (28, 23713), (46, 14434), (92, 7217), (161, 4124), (322, 2062), (644, 1031)]