20345619

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{16421}}^1$

素因数の和:16490

約数の個数: 16

約数和(自身を含む): 31530240

約数和(自身を除く): 11184621

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 16421, 49263, 114947, 344841, 968839, 2906517, 6781873, 20345619]

約数ペア:

[(1, 20345619), (3, 6781873), (7, 2906517), (21, 968839), (59, 344841), (177, 114947), (413, 49263), (1239, 16421)]