18081215

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:191

約数の個数: 24

約数和(自身を含む): 23164704

約数和(自身を除く): 5083489

約数列:

[1, 5, 31, 53, 71, 155, 265, 355, 961, 1643, 2201, 3763, 4805, 8215, 11005, 18815, 50933, 68231, 116653, 254665, 341155, 583265, 3616243, 18081215]

約数ペア:

[(1, 18081215), (5, 3616243), (31, 583265), (53, 341155), (71, 254665), (155, 116653), (265, 68231), (355, 50933), (961, 18815), (1643, 11005), (2201, 8215), (3763, 4805)]