2640429

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 4212000

約数和(自身を除く): 1571571

約数列:

[1, 3, 9, 11, 33, 99, 149, 179, 447, 537, 1341, 1611, 1639, 1969, 4917, 5907, 14751, 17721, 26671, 80013, 240039, 293381, 880143, 2640429]

約数ペア:

[(1, 2640429), (3, 880143), (9, 293381), (11, 240039), (33, 80013), (99, 26671), (149, 17721), (179, 14751), (447, 5907), (537, 4917), (1341, 1969), (1611, 1639)]