20977564

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{2131}}^1$

素因数の和:2265

約数の個数: 24

約数和(自身を含む): 38683008

約数和(自身を除く): 17705444

約数列:

[1, 2, 4, 23, 46, 92, 107, 214, 428, 2131, 2461, 4262, 4922, 8524, 9844, 49013, 98026, 196052, 228017, 456034, 912068, 5244391, 10488782, 20977564]

約数ペア:

[(1, 20977564), (2, 10488782), (4, 5244391), (23, 912068), (46, 456034), (92, 228017), (107, 196052), (214, 98026), (428, 49013), (2131, 9844), (2461, 8524), (4262, 4922)]