20439636

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3989}}^1$

素因数の和:4064

約数の個数: 48

約数和(自身を含む): 55413120

約数和(自身を除く): 34973484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 61, 84, 122, 183, 244, 366, 427, 732, 854, 1281, 1708, 2562, 3989, 5124, 7978, 11967, 15956, 23934, 27923, 47868, 55846, 83769, 111692, 167538, 243329, 335076, 486658, 729987, 973316, 1459974, 1703303, 2919948, 3406606, 5109909, 6813212, 10219818, 20439636]

約数ペア:

[(1, 20439636), (2, 10219818), (3, 6813212), (4, 5109909), (6, 3406606), (7, 2919948), (12, 1703303), (14, 1459974), (21, 973316), (28, 729987), (42, 486658), (61, 335076), (84, 243329), (122, 167538), (183, 111692), (244, 83769), (366, 55846), (427, 47868), (732, 27923), (854, 23934), (1281, 15956), (1708, 11967), (2562, 7978), (3989, 5124)]