648018

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 1659840

約数和(自身を除く): 1011822

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 139, 222, 259, 278, 333, 417, 518, 666, 777, 834, 973, 1251, 1554, 1946, 2331, 2502, 2919, 4662, 5143, 5838, 8757, 10286, 15429, 17514, 30858, 36001, 46287, 72002, 92574, 108003, 216006, 324009, 648018]

約数ペア:

[(1, 648018), (2, 324009), (3, 216006), (6, 108003), (7, 92574), (9, 72002), (14, 46287), (18, 36001), (21, 30858), (37, 17514), (42, 15429), (63, 10286), (74, 8757), (111, 5838), (126, 5143), (139, 4662), (222, 2919), (259, 2502), (278, 2331), (333, 1946), (417, 1554), (518, 1251), (666, 973), (777, 834)]