20863129

素因数分解:

$7^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 24393600

約数和(自身を除く): 3530471

約数列:

[1, 7, 83, 149, 241, 581, 1043, 1687, 12367, 20003, 35909, 86569, 140021, 251363, 2980447, 20863129]

約数ペア:

[(1, 20863129), (7, 2980447), (83, 251363), (149, 140021), (241, 86569), (581, 35909), (1043, 20003), (1687, 12367)]