81505191

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{919}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 120821760

約数和(自身を除く): 39316569

約数列:

[1, 3, 17, 37, 47, 51, 111, 141, 629, 799, 919, 1739, 1887, 2397, 2757, 5217, 15623, 29563, 34003, 43193, 46869, 88689, 102009, 129579, 578051, 734281, 1598141, 1734153, 2202843, 4794423, 27168397, 81505191]

約数ペア:

[(1, 81505191), (3, 27168397), (17, 4794423), (37, 2202843), (47, 1734153), (51, 1598141), (111, 734281), (141, 578051), (629, 129579), (799, 102009), (919, 88689), (1739, 46869), (1887, 43193), (2397, 34003), (2757, 29563), (5217, 15623)]