21796054

素因数分解:

$2^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{1571}}^1$

素因数の和:2571

約数の個数: 16

約数和(自身を含む): 37426176

約数和(自身を除く): 15630122

約数列:

[1, 2, 7, 14, 991, 1571, 1982, 3142, 6937, 10997, 13874, 21994, 1556861, 3113722, 10898027, 21796054]

約数ペア:

[(1, 21796054), (2, 10898027), (7, 3113722), (14, 1556861), (991, 21994), (1571, 13874), (1982, 10997), (3142, 6937)]