12387654

素因数分解:

$2^1\times 3^5\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 28304640

約数和(自身を除く): 15916986

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 243, 359, 426, 486, 639, 718, 1077, 1278, 1917, 2154, 3231, 3834, 5751, 6462, 9693, 11502, 17253, 19386, 25489, 29079, 34506, 50978, 58158, 76467, 87237, 152934, 174474, 229401, 458802, 688203, 1376406, 2064609, 4129218, 6193827, 12387654]

約数ペア:

[(1, 12387654), (2, 6193827), (3, 4129218), (6, 2064609), (9, 1376406), (18, 688203), (27, 458802), (54, 229401), (71, 174474), (81, 152934), (142, 87237), (162, 76467), (213, 58158), (243, 50978), (359, 34506), (426, 29079), (486, 25489), (639, 19386), (718, 17253), (1077, 11502), (1278, 9693), (1917, 6462), (2154, 5751), (3231, 3834)]