21887496

素因数分解:

$2^3\times 3^9\times {\mathrm{139}}^1$

素因数の和:172

約数の個数: 80

約数和(自身を含む): 62000400

約数和(自身を除く): 40112904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 139, 162, 216, 243, 278, 324, 417, 486, 556, 648, 729, 834, 972, 1112, 1251, 1458, 1668, 1944, 2187, 2502, 2916, 3336, 3753, 4374, 5004, 5832, 6561, 7506, 8748, 10008, 11259, 13122, 15012, 17496, 19683, 22518, 26244, 30024, 33777, 39366, 45036, 52488, 67554, 78732, 90072, 101331, 135108, 157464, 202662, 270216, 303993, 405324, 607986, 810648, 911979, 1215972, 1823958, 2431944, 2735937, 3647916, 5471874, 7295832, 10943748, 21887496]

約数ペア:

[(1, 21887496), (2, 10943748), (3, 7295832), (4, 5471874), (6, 3647916), (8, 2735937), (9, 2431944), (12, 1823958), (18, 1215972), (24, 911979), (27, 810648), (36, 607986), (54, 405324), (72, 303993), (81, 270216), (108, 202662), (139, 157464), (162, 135108), (216, 101331), (243, 90072), (278, 78732), (324, 67554), (417, 52488), (486, 45036), (556, 39366), (648, 33777), (729, 30024), (834, 26244), (972, 22518), (1112, 19683), (1251, 17496), (1458, 15012), (1668, 13122), (1944, 11259), (2187, 10008), (2502, 8748), (2916, 7506), (3336, 6561), (3753, 5832), (4374, 5004)]