18748961

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4127}}^1$

素因数の和:4204

約数の個数: 16

約数和(自身を含む): 23777280

約数和(自身を除く): 5028319

約数列:

[1, 7, 11, 59, 77, 413, 649, 4127, 4543, 28889, 45397, 243493, 317779, 1704451, 2678423, 18748961]

約数ペア:

[(1, 18748961), (7, 2678423), (11, 1704451), (59, 317779), (77, 243493), (413, 45397), (649, 28889), (4127, 4543)]