7251489

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 12779520

約数和(自身を除く): 5528031

約数列:

[1, 3, 7, 9, 21, 31, 47, 63, 79, 93, 141, 217, 237, 279, 329, 423, 553, 651, 711, 987, 1457, 1659, 1953, 2449, 2961, 3713, 4371, 4977, 7347, 10199, 11139, 13113, 17143, 22041, 25991, 30597, 33417, 51429, 77973, 91791, 115103, 154287, 233919, 345309, 805721, 1035927, 2417163, 7251489]

約数ペア:

[(1, 7251489), (3, 2417163), (7, 1035927), (9, 805721), (21, 345309), (31, 233919), (47, 154287), (63, 115103), (79, 91791), (93, 77973), (141, 51429), (217, 33417), (237, 30597), (279, 25991), (329, 22041), (423, 17143), (553, 13113), (651, 11139), (711, 10199), (987, 7347), (1457, 4977), (1659, 4371), (1953, 3713), (2449, 2961)]