12738987

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 20966400

約数和(自身を除く): 8227413

約数列:

[1, 3, 9, 19, 23, 41, 57, 69, 79, 123, 171, 207, 237, 369, 437, 711, 779, 943, 1311, 1501, 1817, 2337, 2829, 3239, 3933, 4503, 5451, 7011, 8487, 9717, 13509, 16353, 17917, 29151, 34523, 53751, 61541, 74497, 103569, 161253, 184623, 223491, 310707, 553869, 670473, 1415443, 4246329, 12738987]

約数ペア:

[(1, 12738987), (3, 4246329), (9, 1415443), (19, 670473), (23, 553869), (41, 310707), (57, 223491), (69, 184623), (79, 161253), (123, 103569), (171, 74497), (207, 61541), (237, 53751), (369, 34523), (437, 29151), (711, 17917), (779, 16353), (943, 13509), (1311, 9717), (1501, 8487), (1817, 7011), (2337, 5451), (2829, 4503), (3239, 3933)]