20789561

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:776

約数の個数: 16

約数和(自身を含む): 23439360

約数和(自身を除く): 2649799

約数列:

[1, 13, 31, 79, 403, 653, 1027, 2449, 8489, 20243, 31837, 51587, 263159, 670631, 1599197, 20789561]

約数ペア:

[(1, 20789561), (13, 1599197), (31, 670631), (79, 263159), (403, 51587), (653, 31837), (1027, 20243), (2449, 8489)]