18563804

素因数分解:

$2^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2003}}^1$

素因数の和:2345

約数の個数: 24

約数和(自身を含む): 37258368

約数和(自身を除く): 18694564

約数列:

[1, 2, 4, 7, 14, 28, 331, 662, 1324, 2003, 2317, 4006, 4634, 8012, 9268, 14021, 28042, 56084, 662993, 1325986, 2651972, 4640951, 9281902, 18563804]

約数ペア:

[(1, 18563804), (2, 9281902), (4, 4640951), (7, 2651972), (14, 1325986), (28, 662993), (331, 56084), (662, 28042), (1324, 14021), (2003, 9268), (2317, 8012), (4006, 4634)]