18312507

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 28200960

約数和(自身を除く): 9888453

約数列:

[1, 3, 9, 27, 53, 67, 159, 191, 201, 477, 573, 603, 1431, 1719, 1809, 3551, 5157, 10123, 10653, 12797, 30369, 31959, 38391, 91107, 95877, 115173, 273321, 345519, 678241, 2034723, 6104169, 18312507]

約数ペア:

[(1, 18312507), (3, 6104169), (9, 2034723), (27, 678241), (53, 345519), (67, 273321), (159, 115173), (191, 95877), (201, 91107), (477, 38391), (573, 31959), (603, 30369), (1431, 12797), (1719, 10653), (1809, 10123), (3551, 5157)]