18911142

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{461}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 42810768

約数和(自身を除く): 23899626

約数列:

[1, 2, 3, 6, 9, 18, 43, 53, 86, 106, 129, 159, 258, 318, 387, 461, 477, 774, 922, 954, 1383, 2279, 2766, 4149, 4558, 6837, 8298, 13674, 19823, 20511, 24433, 39646, 41022, 48866, 59469, 73299, 118938, 146598, 178407, 219897, 356814, 439794, 1050619, 2101238, 3151857, 6303714, 9455571, 18911142]

約数ペア:

[(1, 18911142), (2, 9455571), (3, 6303714), (6, 3151857), (9, 2101238), (18, 1050619), (43, 439794), (53, 356814), (86, 219897), (106, 178407), (129, 146598), (159, 118938), (258, 73299), (318, 59469), (387, 48866), (461, 41022), (477, 39646), (774, 24433), (922, 20511), (954, 19823), (1383, 13674), (2279, 8298), (2766, 6837), (4149, 4558)]