638458611

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1\times {\mathrm{1999}}^1$

素因数の和:2303

約数の個数: 32

約数和(自身を含む): 992256000

約数和(自身を除く): 353797389

約数列:

[1, 3, 7, 21, 67, 201, 227, 469, 681, 1407, 1589, 1999, 4767, 5997, 13993, 15209, 41979, 45627, 106463, 133933, 319389, 401799, 453773, 937531, 1361319, 2812593, 3176411, 9529233, 30402791, 91208373, 212819537, 638458611]

約数ペア:

[(1, 638458611), (3, 212819537), (7, 91208373), (21, 30402791), (67, 9529233), (201, 3176411), (227, 2812593), (469, 1361319), (681, 937531), (1407, 453773), (1589, 401799), (1999, 319389), (4767, 133933), (5997, 106463), (13993, 45627), (15209, 41979)]