20519969964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{131538269}}^1$

素因数の和:131538289

約数の個数: 24

約数和(自身を含む): 51563001840

約数和(自身を除く): 31043031876

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 131538269, 263076538, 394614807, 526153076, 789229614, 1578459228, 1709997497, 3419994994, 5129992491, 6839989988, 10259984982, 20519969964]

約数ペア:

[(1, 20519969964), (2, 10259984982), (3, 6839989988), (4, 5129992491), (6, 3419994994), (12, 1709997497), (13, 1578459228), (26, 789229614), (39, 526153076), (52, 394614807), (78, 263076538), (156, 131538269)]