81691148

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{265231}}^1$

素因数の和:265253

約数の個数: 24

約数和(自身を含む): 178235904

約数和(自身を除く): 96544756

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 265231, 530462, 1060924, 1856617, 2917541, 3713234, 5835082, 7426468, 11670164, 20422787, 40845574, 81691148]

約数ペア:

[(1, 81691148), (2, 40845574), (4, 20422787), (7, 11670164), (11, 7426468), (14, 5835082), (22, 3713234), (28, 2917541), (44, 1856617), (77, 1060924), (154, 530462), (308, 265231)]