1998444

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 5481728

約数和(自身を除く): 3483284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 74, 84, 111, 148, 222, 259, 444, 518, 643, 777, 1036, 1286, 1554, 1929, 2572, 3108, 3858, 4501, 7716, 9002, 13503, 18004, 23791, 27006, 47582, 54012, 71373, 95164, 142746, 166537, 285492, 333074, 499611, 666148, 999222, 1998444]

約数ペア:

[(1, 1998444), (2, 999222), (3, 666148), (4, 499611), (6, 333074), (7, 285492), (12, 166537), (14, 142746), (21, 95164), (28, 71373), (37, 54012), (42, 47582), (74, 27006), (84, 23791), (111, 18004), (148, 13503), (222, 9002), (259, 7716), (444, 4501), (518, 3858), (643, 3108), (777, 2572), (1036, 1929), (1286, 1554)]