86857911

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{487}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 152256000

約数和(自身を除く): 65398089

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 149, 171, 399, 447, 487, 1043, 1197, 1341, 1461, 2831, 3129, 3409, 4383, 8493, 9253, 9387, 10227, 19817, 25479, 27759, 30681, 59451, 64771, 72563, 83277, 178353, 194313, 217689, 507941, 582939, 653067, 1378697, 1523823, 4136091, 4571469, 9650879, 12408273, 28952637, 86857911]

約数ペア:

[(1, 86857911), (3, 28952637), (7, 12408273), (9, 9650879), (19, 4571469), (21, 4136091), (57, 1523823), (63, 1378697), (133, 653067), (149, 582939), (171, 507941), (399, 217689), (447, 194313), (487, 178353), (1043, 83277), (1197, 72563), (1341, 64771), (1461, 59451), (2831, 30681), (3129, 27759), (3409, 25479), (4383, 19817), (8493, 10227), (9253, 9387)]