20159916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{239999}}^1$

素因数の和:240013

約数の個数: 24

約数和(自身を含む): 53760000

約数和(自身を除く): 33600084

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 239999, 479998, 719997, 959996, 1439994, 1679993, 2879988, 3359986, 5039979, 6719972, 10079958, 20159916]

約数ペア:

[(1, 20159916), (2, 10079958), (3, 6719972), (4, 5039979), (6, 3359986), (7, 2879988), (12, 1679993), (14, 1439994), (21, 959996), (28, 719997), (42, 479998), (84, 239999)]