19860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 55776

約数和(自身を除く): 35916

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331, 662, 993, 1324, 1655, 1986, 3310, 3972, 4965, 6620, 9930, 19860]

約数ペア:

[(1, 19860), (2, 9930), (3, 6620), (4, 4965), (5, 3972), (6, 3310), (10, 1986), (12, 1655), (15, 1324), (20, 993), (30, 662), (60, 331)]