18272639

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1$

素因数の和:228

約数の個数: 32

約数和(自身を含む): 24192000

約数和(自身を除く): 5919361

約数列:

[1, 7, 11, 29, 49, 77, 167, 203, 319, 343, 539, 1169, 1421, 1837, 2233, 3773, 4843, 8183, 9947, 12859, 15631, 33901, 53273, 57281, 90013, 109417, 237307, 372911, 630091, 1661149, 2610377, 18272639]

約数ペア:

[(1, 18272639), (7, 2610377), (11, 1661149), (29, 630091), (49, 372911), (77, 237307), (167, 109417), (203, 90013), (319, 57281), (343, 53273), (539, 33901), (1169, 15631), (1421, 12859), (1837, 9947), (2233, 8183), (3773, 4843)]