257079214

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{258631}}^1$

素因数の和:258711

約数の個数: 16

約数和(自身を含む): 446916096

約数和(自身を除く): 189836882

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 258631, 517262, 1810417, 3620834, 18362801, 36725602, 128539607, 257079214]

約数ペア:

[(1, 257079214), (2, 128539607), (7, 36725602), (14, 18362801), (71, 3620834), (142, 1810417), (497, 517262), (994, 258631)]