81661594

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{65539}}^1$

素因数の和:65637

約数の個数: 16

約数和(自身を含む): 141566400

約数和(自身を除く): 59904806

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 65539, 131078, 458773, 917546, 5832971, 11665942, 40830797, 81661594]

約数ペア:

[(1, 81661594), (2, 40830797), (7, 11665942), (14, 5832971), (89, 917546), (178, 458773), (623, 131078), (1246, 65539)]