639718937

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{120907}}^1$

素因数の和:120968

約数の個数: 16

約数和(自身を含む): 771876672

約数和(自身を除く): 132157735

約数列:

[1, 11, 13, 37, 143, 407, 481, 5291, 120907, 1329977, 1571791, 4473559, 17289701, 49209149, 58156267, 639718937]

約数ペア:

[(1, 639718937), (11, 58156267), (13, 49209149), (37, 17289701), (143, 4473559), (407, 1571791), (481, 1329977), (5291, 120907)]