20406280321

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{6577}}^1\times {\mathrm{8363}}^1$

素因数の和:15000

約数の個数: 16

約数和(自身を含む): 23767945344

約数和(自身を除く): 3361665023

約数列:

[1, 7, 53, 371, 6577, 8363, 46039, 58541, 348581, 443239, 2440067, 3102673, 55003451, 385024157, 2915182903, 20406280321]

約数ペア:

[(1, 20406280321), (7, 2915182903), (53, 385024157), (371, 55003451), (6577, 3102673), (8363, 2440067), (46039, 443239), (58541, 348581)]