18767147

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:371

約数の個数: 24

約数和(自身を含む): 23146560

約数和(自身を除く): 4379413

約数列:

[1, 7, 29, 47, 49, 203, 281, 329, 1363, 1421, 1967, 2303, 8149, 9541, 13207, 13769, 57043, 66787, 92449, 383003, 399301, 647143, 2681021, 18767147]

約数ペア:

[(1, 18767147), (7, 2681021), (29, 647143), (47, 399301), (49, 383003), (203, 92449), (281, 66787), (329, 57043), (1363, 13769), (1421, 13207), (1967, 9541), (2303, 8149)]