27788355

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4643}}^1$

素因数の和:4680

約数の個数: 48

約数和(自身を含む): 57957120

約数和(自身を除く): 30168765

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 4643, 5985, 13929, 23215, 32501, 41787, 69645, 88217, 97503, 162505, 208935, 264651, 292509, 441085, 487515, 617519, 793953, 1323255, 1462545, 1852557, 3087595, 3969765, 5557671, 9262785, 27788355]

約数ペア:

[(1, 27788355), (3, 9262785), (5, 5557671), (7, 3969765), (9, 3087595), (15, 1852557), (19, 1462545), (21, 1323255), (35, 793953), (45, 617519), (57, 487515), (63, 441085), (95, 292509), (105, 264651), (133, 208935), (171, 162505), (285, 97503), (315, 88217), (399, 69645), (665, 41787), (855, 32501), (1197, 23215), (1995, 13929), (4643, 5985)]