21009294

素因数分解:

$2^1\times 3^5\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 26689266

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 139, 162, 243, 278, 311, 417, 486, 622, 834, 933, 1251, 1866, 2502, 2799, 3753, 5598, 7506, 8397, 11259, 16794, 22518, 25191, 33777, 43229, 50382, 67554, 75573, 86458, 129687, 151146, 259374, 389061, 778122, 1167183, 2334366, 3501549, 7003098, 10504647, 21009294]

約数ペア:

[(1, 21009294), (2, 10504647), (3, 7003098), (6, 3501549), (9, 2334366), (18, 1167183), (27, 778122), (54, 389061), (81, 259374), (139, 151146), (162, 129687), (243, 86458), (278, 75573), (311, 67554), (417, 50382), (486, 43229), (622, 33777), (834, 25191), (933, 22518), (1251, 16794), (1866, 11259), (2502, 8397), (2799, 7506), (3753, 5598)]