18871047

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:704

約数の個数: 36

約数和(自身を含む): 31117320

約数和(自身を除く): 12246273

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 169, 171, 247, 507, 653, 741, 1521, 1959, 2223, 3211, 5877, 8489, 9633, 12407, 25467, 28899, 37221, 76401, 110357, 111663, 161291, 331071, 483873, 993213, 1451619, 2096783, 6290349, 18871047]

約数ペア:

[(1, 18871047), (3, 6290349), (9, 2096783), (13, 1451619), (19, 993213), (39, 483873), (57, 331071), (117, 161291), (169, 111663), (171, 110357), (247, 76401), (507, 37221), (653, 28899), (741, 25467), (1521, 12407), (1959, 9633), (2223, 8489), (3211, 5877)]