25977693

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 43338240

約数和(自身を除く): 17360547

約数列:

[1, 3, 7, 19, 21, 49, 57, 71, 131, 133, 147, 213, 393, 399, 497, 917, 931, 1349, 1491, 2489, 2751, 2793, 3479, 4047, 6419, 7467, 9301, 9443, 10437, 17423, 19257, 27903, 28329, 52269, 65107, 66101, 121961, 176719, 195321, 198303, 365883, 455749, 530157, 1237033, 1367247, 3711099, 8659231, 25977693]

約数ペア:

[(1, 25977693), (3, 8659231), (7, 3711099), (19, 1367247), (21, 1237033), (49, 530157), (57, 455749), (71, 365883), (131, 198303), (133, 195321), (147, 176719), (213, 121961), (393, 66101), (399, 65107), (497, 52269), (917, 28329), (931, 27903), (1349, 19257), (1491, 17423), (2489, 10437), (2751, 9443), (2793, 9301), (3479, 7467), (4047, 6419)]