18922940

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1657}}^1$

素因数の和:2237

約数の個数: 24

約数和(自身を含む): 39831792

約数和(自身を除く): 20908852

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 1657, 2284, 2855, 3314, 5710, 6628, 8285, 11420, 16570, 33140, 946147, 1892294, 3784588, 4730735, 9461470, 18922940]

約数ペア:

[(1, 18922940), (2, 9461470), (4, 4730735), (5, 3784588), (10, 1892294), (20, 946147), (571, 33140), (1142, 16570), (1657, 11420), (2284, 8285), (2855, 6628), (3314, 5710)]