18645867

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 27627600

約数和(自身を除く): 8981733

約数列:

[1, 3, 9, 83, 109, 229, 249, 327, 687, 747, 981, 2061, 9047, 19007, 24961, 27141, 57021, 74883, 81423, 171063, 224649, 2071763, 6215289, 18645867]

約数ペア:

[(1, 18645867), (3, 6215289), (9, 2071763), (83, 224649), (109, 171063), (229, 81423), (249, 74883), (327, 57021), (687, 27141), (747, 24961), (981, 19007), (2061, 9047)]