19218591

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2851}}^1$

素因数の和:2971

約数の個数: 24

約数和(自身を含む): 32033664

約数和(自身を除く): 12815073

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 2851, 6741, 8553, 19957, 25659, 59871, 179613, 305057, 915171, 2135399, 2745513, 6406197, 19218591]

約数ペア:

[(1, 19218591), (3, 6406197), (7, 2745513), (9, 2135399), (21, 915171), (63, 305057), (107, 179613), (321, 59871), (749, 25659), (963, 19957), (2247, 8553), (2851, 6741)]