19819860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{330331}}^1$

素因数の和:330343

約数の個数: 24

約数和(自身を含む): 55495776

約数和(自身を除く): 35675916

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 330331, 660662, 990993, 1321324, 1651655, 1981986, 3303310, 3963972, 4954965, 6606620, 9909930, 19819860]

約数ペア:

[(1, 19819860), (2, 9909930), (3, 6606620), (4, 4954965), (5, 3963972), (6, 3303310), (10, 1981986), (12, 1651655), (15, 1321324), (20, 990993), (30, 660662), (60, 330331)]