20516418

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2103

約数の個数: 48

約数和(自身を含む): 49008960

約数和(自身を除く): 28492542

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 43, 78, 86, 117, 129, 234, 258, 387, 559, 774, 1118, 1677, 2039, 3354, 4078, 5031, 6117, 10062, 12234, 18351, 26507, 36702, 53014, 79521, 87677, 159042, 175354, 238563, 263031, 477126, 526062, 789093, 1139801, 1578186, 2279602, 3419403, 6838806, 10258209, 20516418]

約数ペア:

[(1, 20516418), (2, 10258209), (3, 6838806), (6, 3419403), (9, 2279602), (13, 1578186), (18, 1139801), (26, 789093), (39, 526062), (43, 477126), (78, 263031), (86, 238563), (117, 175354), (129, 159042), (234, 87677), (258, 79521), (387, 53014), (559, 36702), (774, 26507), (1118, 18351), (1677, 12234), (2039, 10062), (3354, 6117), (4078, 5031)]