67821999

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{457}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 106930176

約数和(自身を除く): 39108177

約数列:

[1, 3, 7, 21, 37, 111, 191, 259, 457, 573, 777, 1337, 1371, 3199, 4011, 7067, 9597, 16909, 21201, 49469, 50727, 87287, 118363, 148407, 261861, 355089, 611009, 1833027, 3229619, 9688857, 22607333, 67821999]

約数ペア:

[(1, 67821999), (3, 22607333), (7, 9688857), (21, 3229619), (37, 1833027), (111, 611009), (191, 355089), (259, 261861), (457, 148407), (573, 118363), (777, 87287), (1337, 50727), (1371, 49469), (3199, 21201), (4011, 16909), (7067, 9597)]