2720739

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 4460544

約数和(自身を除く): 1739805

約数列:

[1, 3, 7, 21, 23, 43, 69, 129, 131, 161, 301, 393, 483, 903, 917, 989, 2751, 2967, 3013, 5633, 6923, 9039, 16899, 20769, 21091, 39431, 63273, 118293, 129559, 388677, 906913, 2720739]

約数ペア:

[(1, 2720739), (3, 906913), (7, 388677), (21, 129559), (23, 118293), (43, 63273), (69, 39431), (129, 21091), (131, 20769), (161, 16899), (301, 9039), (393, 6923), (483, 5633), (903, 3013), (917, 2967), (989, 2751)]