19800393

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{1741}}^1$

素因数の和:1984

約数の個数: 16

約数和(自身を含む): 28094976

約数和(自身を除く): 8294583

約数列:

[1, 3, 17, 51, 223, 669, 1741, 3791, 5223, 11373, 29597, 88791, 388243, 1164729, 6600131, 19800393]

約数ペア:

[(1, 19800393), (3, 6600131), (17, 1164729), (51, 388243), (223, 88791), (669, 29597), (1741, 11373), (3791, 5223)]