20687419

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{337}}^1$

素因数の和:534

約数の個数: 16

約数和(自身を含む): 23070528

約数和(自身を除く): 2383109

約数列:

[1, 17, 23, 157, 337, 391, 2669, 3611, 5729, 7751, 52909, 61387, 131767, 899453, 1216907, 20687419]

約数ペア:

[(1, 20687419), (17, 1216907), (23, 899453), (157, 131767), (337, 61387), (391, 52909), (2669, 7751), (3611, 5729)]