18998161

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 25320960

約数和(自身を除く): 6322799

約数列:

[1, 7, 13, 23, 29, 91, 161, 203, 299, 313, 377, 667, 2093, 2191, 2639, 4069, 4669, 7199, 8671, 9077, 28483, 50393, 60697, 63539, 93587, 118001, 208771, 655109, 826007, 1461397, 2714023, 18998161]

約数ペア:

[(1, 18998161), (7, 2714023), (13, 1461397), (23, 826007), (29, 655109), (91, 208771), (161, 118001), (203, 93587), (299, 63539), (313, 60697), (377, 50393), (667, 28483), (2093, 9077), (2191, 8671), (2639, 7199), (4069, 4669)]