21012874

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{659}}^1$

素因数の和:917

約数の個数: 16

約数和(自身を含む): 32076000

約数和(自身を除く): 11063126

約数列:

[1, 2, 107, 149, 214, 298, 659, 1318, 15943, 31886, 70513, 98191, 141026, 196382, 10506437, 21012874]

約数ペア:

[(1, 21012874), (2, 10506437), (107, 196382), (149, 141026), (214, 98191), (298, 70513), (659, 31886), (1318, 15943)]