18228245

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1583}}^1$

素因数の和:1649

約数の個数: 24

約数和(自身を含む): 26002944

約数和(自身を除く): 7774699

約数列:

[1, 5, 7, 35, 47, 49, 235, 245, 329, 1583, 1645, 2303, 7915, 11081, 11515, 55405, 74401, 77567, 372005, 387835, 520807, 2604035, 3645649, 18228245]

約数ペア:

[(1, 18228245), (5, 3645649), (7, 2604035), (35, 520807), (47, 387835), (49, 372005), (235, 77567), (245, 74401), (329, 55405), (1583, 11515), (1645, 11081), (2303, 7915)]