51418155

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 83939328

約数和(自身を除く): 32521173

約数列:

[1, 3, 5, 15, 131, 137, 191, 393, 411, 573, 655, 685, 955, 1965, 2055, 2865, 17947, 25021, 26167, 53841, 75063, 78501, 89735, 125105, 130835, 269205, 375315, 392505, 3427877, 10283631, 17139385, 51418155]

約数ペア:

[(1, 51418155), (3, 17139385), (5, 10283631), (15, 3427877), (131, 392505), (137, 375315), (191, 269205), (393, 130835), (411, 125105), (573, 89735), (655, 78501), (685, 75063), (955, 53841), (1965, 26167), (2055, 25021), (2865, 17947)]