21483918

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:769

約数の個数: 48

約数和(自身を含む): 48864816

約数和(自身を除く): 27380898

約数列:

[1, 2, 3, 6, 9, 18, 41, 43, 82, 86, 123, 129, 246, 258, 369, 387, 677, 738, 774, 1354, 1763, 2031, 3526, 4062, 5289, 6093, 10578, 12186, 15867, 27757, 29111, 31734, 55514, 58222, 83271, 87333, 166542, 174666, 249813, 261999, 499626, 523998, 1193551, 2387102, 3580653, 7161306, 10741959, 21483918]

約数ペア:

[(1, 21483918), (2, 10741959), (3, 7161306), (6, 3580653), (9, 2387102), (18, 1193551), (41, 523998), (43, 499626), (82, 261999), (86, 249813), (123, 174666), (129, 166542), (246, 87333), (258, 83271), (369, 58222), (387, 55514), (677, 31734), (738, 29111), (774, 27757), (1354, 15867), (1763, 12186), (2031, 10578), (3526, 6093), (4062, 5289)]