21740895

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{263}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 19772577

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 167, 263, 495, 501, 789, 835, 1315, 1503, 1837, 2367, 2505, 2893, 3945, 5511, 7515, 8679, 9185, 11835, 14465, 16533, 26037, 27555, 43395, 43921, 82665, 130185, 131763, 219605, 395289, 483131, 658815, 1449393, 1976445, 2415655, 4348179, 7246965, 21740895]

約数ペア:

[(1, 21740895), (3, 7246965), (5, 4348179), (9, 2415655), (11, 1976445), (15, 1449393), (33, 658815), (45, 483131), (55, 395289), (99, 219605), (165, 131763), (167, 130185), (263, 82665), (495, 43921), (501, 43395), (789, 27555), (835, 26037), (1315, 16533), (1503, 14465), (1837, 11835), (2367, 9185), (2505, 8679), (2893, 7515), (3945, 5511)]