40278441

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^2\times {\mathrm{163}}^1$

素因数の和:262

約数の個数: 36

約数和(自身を含む): 64426416

約数和(自身を除く): 24147975

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 163, 287, 489, 861, 1141, 1681, 2009, 3423, 5043, 6027, 6683, 7987, 11767, 20049, 23961, 35301, 46781, 82369, 140343, 247107, 274003, 327467, 822009, 982401, 1918021, 5754063, 13426147, 40278441]

約数ペア:

[(1, 40278441), (3, 13426147), (7, 5754063), (21, 1918021), (41, 982401), (49, 822009), (123, 327467), (147, 274003), (163, 247107), (287, 140343), (489, 82369), (861, 46781), (1141, 35301), (1681, 23961), (2009, 20049), (3423, 11767), (5043, 7987), (6027, 6683)]