219976581

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{180161}}^1$

素因数の和:180212

約数の個数: 16

約数和(自身を含む): 328615488

約数和(自身を除く): 108638907

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 180161, 540483, 1981771, 5945313, 6665957, 19997871, 73325527, 219976581]

約数ペア:

[(1, 219976581), (3, 73325527), (11, 19997871), (33, 6665957), (37, 5945313), (111, 1981771), (407, 540483), (1221, 180161)]