20157694

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{1301}}^1$

素因数の和:1491

約数の個数: 16

約数和(自身を含む): 30998016

約数和(自身を除く): 10840322

約数列:

[1, 2, 61, 122, 127, 254, 1301, 2602, 7747, 15494, 79361, 158722, 165227, 330454, 10078847, 20157694]

約数ペア:

[(1, 20157694), (2, 10078847), (61, 330454), (122, 165227), (127, 158722), (254, 79361), (1301, 15494), (2602, 7747)]