18781928

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4027}}^1$

素因数の和:4097

約数の個数: 32

約数和(自身を含む): 39152160

約数和(自身を除く): 20370232

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 212, 424, 583, 1166, 2332, 4027, 4664, 8054, 16108, 32216, 44297, 88594, 177188, 213431, 354376, 426862, 853724, 1707448, 2347741, 4695482, 9390964, 18781928]

約数ペア:

[(1, 18781928), (2, 9390964), (4, 4695482), (8, 2347741), (11, 1707448), (22, 853724), (44, 426862), (53, 354376), (88, 213431), (106, 177188), (212, 88594), (424, 44297), (583, 32216), (1166, 16108), (2332, 8054), (4027, 4664)]