20403291207

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1\times {\mathrm{21221}}^1$

素因数の和:21603

約数の個数: 32

約数和(自身を含む): 29734568640

約数和(自身を除く): 9331277433

約数列:

[1, 3, 13, 39, 89, 267, 277, 831, 1157, 3471, 3601, 10803, 21221, 24653, 63663, 73959, 275873, 320489, 827619, 961467, 1888669, 5666007, 5878217, 17634651, 24552697, 73658091, 76416821, 229250463, 523161313, 1569483939, 6801097069, 20403291207]

約数ペア:

[(1, 20403291207), (3, 6801097069), (13, 1569483939), (39, 523161313), (89, 229250463), (267, 76416821), (277, 73658091), (831, 24552697), (1157, 17634651), (3471, 5878217), (3601, 5666007), (10803, 1888669), (21221, 961467), (24653, 827619), (63663, 320489), (73959, 275873)]