18984663

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1213}}^1$

素因数の和:1303

約数の個数: 24

約数和(自身を含む): 28786368

約数和(自身を除く): 9801705

約数列:

[1, 3, 9, 37, 47, 111, 141, 333, 423, 1213, 1739, 3639, 5217, 10917, 15651, 44881, 57011, 134643, 171033, 403929, 513099, 2109407, 6328221, 18984663]

約数ペア:

[(1, 18984663), (3, 6328221), (9, 2109407), (37, 513099), (47, 403929), (111, 171033), (141, 134643), (333, 57011), (423, 44881), (1213, 15651), (1739, 10917), (3639, 5217)]