639774066

素因数分解:

$2^1\times 3^1\times {\mathrm{223}}^1\times {\mathrm{478157}}^1$

素因数の和:478385

約数の個数: 16

約数和(自身を含む): 1285288704

約数和(自身を除く): 645514638

約数列:

[1, 2, 3, 6, 223, 446, 669, 1338, 478157, 956314, 1434471, 2868942, 106629011, 213258022, 319887033, 639774066]

約数ペア:

[(1, 639774066), (2, 319887033), (3, 213258022), (6, 106629011), (223, 2868942), (446, 1434471), (669, 956314), (1338, 478157)]