247718079

素因数分解:

$3^2\times 7^2\times {\mathrm{281}}^1\times {\mathrm{1999}}^1$

素因数の和:2300

約数の個数: 36

約数和(自身を含む): 417924000

約数和(自身を除く): 170205921

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 281, 441, 843, 1967, 1999, 2529, 5901, 5997, 13769, 13993, 17703, 17991, 41307, 41979, 97951, 123921, 125937, 293853, 561719, 881559, 1685157, 3932033, 5055471, 11796099, 27524231, 35388297, 82572693, 247718079]

約数ペア:

[(1, 247718079), (3, 82572693), (7, 35388297), (9, 27524231), (21, 11796099), (49, 5055471), (63, 3932033), (147, 1685157), (281, 881559), (441, 561719), (843, 293853), (1967, 125937), (1999, 123921), (2529, 97951), (5901, 41979), (5997, 41307), (13769, 17991), (13993, 17703)]