19691060

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1217}}^1$

素因数の和:2035

約数の個数: 24

約数和(自身を含む): 41436360

約数和(自身を除く): 21745300

約数列:

[1, 2, 4, 5, 10, 20, 809, 1217, 1618, 2434, 3236, 4045, 4868, 6085, 8090, 12170, 16180, 24340, 984553, 1969106, 3938212, 4922765, 9845530, 19691060]

約数ペア:

[(1, 19691060), (2, 9845530), (4, 4922765), (5, 3938212), (10, 1969106), (20, 984553), (809, 24340), (1217, 16180), (1618, 12170), (2434, 8090), (3236, 6085), (4045, 4868)]