18807951

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 8770929

約数列:

[1, 3, 23, 37, 53, 69, 111, 139, 159, 417, 851, 1219, 1961, 2553, 3197, 3657, 5143, 5883, 7367, 9591, 15429, 22101, 45103, 118289, 135309, 169441, 272579, 354867, 508323, 817737, 6269317, 18807951]

約数ペア:

[(1, 18807951), (3, 6269317), (23, 817737), (37, 508323), (53, 354867), (69, 272579), (111, 169441), (139, 135309), (159, 118289), (417, 45103), (851, 22101), (1219, 15429), (1961, 9591), (2553, 7367), (3197, 5883), (3657, 5143)]