657706938

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{220559}}^1$

素因数の和:220642

約数の個数: 32

約数和(自身を含む): 1524510720

約数和(自身を除く): 866803782

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982, 220559, 441118, 661677, 1323354, 1543913, 3087826, 4631739, 9263478, 15659689, 31319378, 46979067, 93958134, 109617823, 219235646, 328853469, 657706938]

約数ペア:

[(1, 657706938), (2, 328853469), (3, 219235646), (6, 109617823), (7, 93958134), (14, 46979067), (21, 31319378), (42, 15659689), (71, 9263478), (142, 4631739), (213, 3087826), (426, 1543913), (497, 1323354), (994, 661677), (1491, 441118), (2982, 220559)]