18290259

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{487}}^1$

素因数の和:616

約数の個数: 32

約数和(自身を含む): 29514240

約数和(自身を除く): 11223981

約数列:

[1, 3, 9, 13, 27, 39, 107, 117, 321, 351, 487, 963, 1391, 1461, 2889, 4173, 4383, 6331, 12519, 13149, 18993, 37557, 52109, 56979, 156327, 170937, 468981, 677417, 1406943, 2032251, 6096753, 18290259]

約数ペア:

[(1, 18290259), (3, 6096753), (9, 2032251), (13, 1406943), (27, 677417), (39, 468981), (107, 170937), (117, 156327), (321, 56979), (351, 52109), (487, 37557), (963, 18993), (1391, 13149), (1461, 12519), (2889, 6331), (4173, 4383)]