639423942

素因数分解:

$2^1\times 3^1\times {\mathrm{1669}}^1\times {\mathrm{63853}}^1$

素因数の和:65527

約数の個数: 16

約数和(自身を含む): 1279634160

約数和(自身を除く): 640210218

約数列:

[1, 2, 3, 6, 1669, 3338, 5007, 10014, 63853, 127706, 191559, 383118, 106570657, 213141314, 319711971, 639423942]

約数ペア:

[(1, 639423942), (2, 319711971), (3, 213141314), (6, 106570657), (1669, 383118), (3338, 191559), (5007, 127706), (10014, 63853)]