20203821

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 35043840

約数和(自身を除く): 14840019

約数列:

[1, 3, 9, 11, 19, 23, 33, 57, 69, 99, 171, 207, 209, 253, 437, 467, 627, 759, 1311, 1401, 1881, 2277, 3933, 4203, 4807, 5137, 8873, 10741, 14421, 15411, 26619, 32223, 43263, 46233, 79857, 96669, 97603, 118151, 204079, 292809, 354453, 612237, 878427, 1063359, 1836711, 2244869, 6734607, 20203821]

約数ペア:

[(1, 20203821), (3, 6734607), (9, 2244869), (11, 1836711), (19, 1063359), (23, 878427), (33, 612237), (57, 354453), (69, 292809), (99, 204079), (171, 118151), (207, 97603), (209, 96669), (253, 79857), (437, 46233), (467, 43263), (627, 32223), (759, 26619), (1311, 15411), (1401, 14421), (1881, 10741), (2277, 8873), (3933, 5137), (4203, 4807)]