20161971895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1\times {\mathrm{4967}}^1$

素因数の和:5499

約数の個数: 32

約数和(自身を含む): 26275632768

約数和(自身を除く): 6113660873

約数列:

[1, 5, 13, 65, 197, 317, 985, 1585, 2561, 4121, 4967, 12805, 20605, 24835, 62449, 64571, 312245, 322855, 811837, 978499, 1574539, 4059185, 4892495, 7872695, 12720487, 20469007, 63602435, 102345035, 310184183, 1550920915, 4032394379, 20161971895]

約数ペア:

[(1, 20161971895), (5, 4032394379), (13, 1550920915), (65, 310184183), (197, 102345035), (317, 63602435), (985, 20469007), (1585, 12720487), (2561, 7872695), (4121, 4892495), (4967, 4059185), (12805, 1574539), (20605, 978499), (24835, 811837), (62449, 322855), (64571, 312245)]