19821540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{330359}}^1$

素因数の和:330371

約数の個数: 24

約数和(自身を含む): 55500480

約数和(自身を除く): 35678940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 330359, 660718, 991077, 1321436, 1651795, 1982154, 3303590, 3964308, 4955385, 6607180, 9910770, 19821540]

約数ペア:

[(1, 19821540), (2, 9910770), (3, 6607180), (4, 4955385), (5, 3964308), (6, 3303590), (10, 1982154), (12, 1651795), (15, 1321436), (20, 991077), (30, 660718), (60, 330359)]