81026811

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{163}}^1$

素因数の和:230

約数の個数: 60

約数和(自身を含む): 136090152

約数和(自身を除く): 55063341

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 163, 171, 323, 361, 459, 489, 513, 969, 1083, 1377, 1467, 1539, 2771, 2907, 3097, 3249, 4401, 6137, 8313, 8721, 9291, 9747, 13203, 18411, 24939, 26163, 27873, 29241, 52649, 55233, 58843, 74817, 83619, 157947, 165699, 176529, 224451, 250857, 473841, 497097, 529587, 1000331, 1421523, 1588761, 3000993, 4264569, 4766283, 9002979, 27008937, 81026811]

約数ペア:

[(1, 81026811), (3, 27008937), (9, 9002979), (17, 4766283), (19, 4264569), (27, 3000993), (51, 1588761), (57, 1421523), (81, 1000331), (153, 529587), (163, 497097), (171, 473841), (323, 250857), (361, 224451), (459, 176529), (489, 165699), (513, 157947), (969, 83619), (1083, 74817), (1377, 58843), (1467, 55233), (1539, 52649), (2771, 29241), (2907, 27873), (3097, 26163), (3249, 24939), (4401, 18411), (6137, 13203), (8313, 9747), (8721, 9291)]