20894247101

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{121421}}^1$

素因数の和:121533

約数の個数: 32

約数和(自身を含む): 26980939776

約数和(自身を除く): 6086692675

約数列:

[1, 7, 13, 31, 61, 91, 217, 403, 427, 793, 1891, 2821, 5551, 13237, 24583, 121421, 172081, 849947, 1578473, 3764051, 7406681, 11049311, 26348357, 48932663, 51846767, 96286853, 229607111, 342528641, 674007971, 1607249777, 2984892443, 20894247101]

約数ペア:

[(1, 20894247101), (7, 2984892443), (13, 1607249777), (31, 674007971), (61, 342528641), (91, 229607111), (217, 96286853), (403, 51846767), (427, 48932663), (793, 26348357), (1891, 11049311), (2821, 7406681), (5551, 3764051), (13237, 1578473), (24583, 849947), (121421, 172081)]