20877513

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{977}}^1$

素因数の和:1416

約数の個数: 16

約数和(自身を含む): 29574720

約数和(自身を除く): 8697207

約数列:

[1, 3, 17, 51, 419, 977, 1257, 2931, 7123, 16609, 21369, 49827, 409363, 1228089, 6959171, 20877513]

約数ペア:

[(1, 20877513), (3, 6959171), (17, 1228089), (51, 409363), (419, 49827), (977, 21369), (1257, 16609), (2931, 7123)]