20511486

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{3943}}^1$

素因数の和:3985

約数の個数: 36

約数和(自身を含む): 47221512

約数和(自身を除く): 26710026

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 289, 306, 578, 867, 1734, 2601, 3943, 5202, 7886, 11829, 23658, 35487, 67031, 70974, 134062, 201093, 402186, 603279, 1139527, 1206558, 2279054, 3418581, 6837162, 10255743, 20511486]

約数ペア:

[(1, 20511486), (2, 10255743), (3, 6837162), (6, 3418581), (9, 2279054), (17, 1206558), (18, 1139527), (34, 603279), (51, 402186), (102, 201093), (153, 134062), (289, 70974), (306, 67031), (578, 35487), (867, 23658), (1734, 11829), (2601, 7886), (3943, 5202)]