51020439

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{659}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 68999040

約数和(自身を除く): 17978601

約数列:

[1, 3, 131, 197, 393, 591, 659, 1977, 25807, 77421, 86329, 129823, 258987, 389469, 17006813, 51020439]

約数ペア:

[(1, 51020439), (3, 17006813), (131, 389469), (197, 258987), (393, 129823), (591, 86329), (659, 77421), (1977, 25807)]