20987117049

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{8369}}^1\times {\mathrm{49171}}^1$

素因数の和:57560

約数の個数: 16

約数和(自身を含む): 29633014080

約数和(自身を除く): 8645897031

約数列:

[1, 3, 17, 51, 8369, 25107, 49171, 142273, 147513, 426819, 835907, 2507721, 411512099, 1234536297, 6995705683, 20987117049]

約数ペア:

[(1, 20987117049), (3, 6995705683), (17, 1234536297), (51, 411512099), (8369, 2507721), (25107, 835907), (49171, 426819), (142273, 147513)]