19711180

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3169}}^1$

素因数の和:3489

約数の個数: 24

約数和(自身を含む): 41539680

約数和(自身を除く): 21828500

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 3169, 6220, 6338, 12676, 15845, 31690, 63380, 985559, 1971118, 3942236, 4927795, 9855590, 19711180]

約数ペア:

[(1, 19711180), (2, 9855590), (4, 4927795), (5, 3942236), (10, 1971118), (20, 985559), (311, 63380), (622, 31690), (1244, 15845), (1555, 12676), (3110, 6338), (3169, 6220)]