391092247

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{619}}^1$

素因数の和:823

約数の個数: 32

約数和(自身を含む): 494968320

約数和(自身を除く): 103876073

約数列:

[1, 7, 13, 53, 91, 131, 371, 619, 689, 917, 1703, 4333, 4823, 6943, 8047, 11921, 32807, 48601, 56329, 81089, 90259, 229649, 426491, 567623, 631813, 1054157, 2985437, 4297717, 7379099, 30084019, 55870321, 391092247]

約数ペア:

[(1, 391092247), (7, 55870321), (13, 30084019), (53, 7379099), (91, 4297717), (131, 2985437), (371, 1054157), (619, 631813), (689, 567623), (917, 426491), (1703, 229649), (4333, 90259), (4823, 81089), (6943, 56329), (8047, 48601), (11921, 32807)]