21517041

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{293}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 14045199

約数列:

[1, 3, 7, 13, 21, 39, 91, 269, 273, 293, 807, 879, 1883, 2051, 3497, 3809, 5649, 6153, 10491, 11427, 24479, 26663, 73437, 78817, 79989, 236451, 551719, 1024621, 1655157, 3073863, 7172347, 21517041]

約数ペア:

[(1, 21517041), (3, 7172347), (7, 3073863), (13, 1655157), (21, 1024621), (39, 551719), (91, 236451), (269, 79989), (273, 78817), (293, 73437), (807, 26663), (879, 24479), (1883, 11427), (2051, 10491), (3497, 6153), (3809, 5649)]