20678829

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{5171}}^1$

素因数の和:5248

約数の個数: 16

約数和(自身を含む): 29128704

約数和(自身を除く): 8449875

約数列:

[1, 3, 31, 43, 93, 129, 1333, 3999, 5171, 15513, 160301, 222353, 480903, 667059, 6892943, 20678829]

約数ペア:

[(1, 20678829), (3, 6892943), (31, 667059), (43, 480903), (93, 222353), (129, 160301), (1333, 15513), (3999, 5171)]