78821561

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{27941}}^1$

素因数の和:27992

約数の個数: 16

約数和(自身を含む): 100144128

約数和(自身を除く): 21322567

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 27941, 195587, 363233, 866171, 2542631, 6063197, 11260223, 78821561]

約数ペア:

[(1, 78821561), (7, 11260223), (13, 6063197), (31, 2542631), (91, 866171), (217, 363233), (403, 195587), (2821, 27941)]