20818563519

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1\times {\mathrm{25169}}^1$

素因数の和:25479

約数の個数: 32

約数和(自身を含む): 30310318080

約数和(自身を除く): 9491754561

約数列:

[1, 3, 13, 39, 127, 167, 381, 501, 1651, 2171, 4953, 6513, 21209, 25169, 63627, 75507, 275717, 327197, 827151, 981591, 3196463, 4203223, 9589389, 12609669, 41554019, 54641899, 124662057, 163925697, 533809321, 1601427963, 6939521173, 20818563519]

約数ペア:

[(1, 20818563519), (3, 6939521173), (13, 1601427963), (39, 533809321), (127, 163925697), (167, 124662057), (381, 54641899), (501, 41554019), (1651, 12609669), (2171, 9589389), (4953, 4203223), (6513, 3196463), (21209, 981591), (25169, 827151), (63627, 327197), (75507, 275717)]