21872876

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{287801}}^1$

素因数の和:287824

約数の個数: 12

約数和(自身を含む): 40292280

約数和(自身を除く): 18419404

約数列:

[1, 2, 4, 19, 38, 76, 287801, 575602, 1151204, 5468219, 10936438, 21872876]

約数ペア:

[(1, 21872876), (2, 10936438), (4, 5468219), (19, 1151204), (38, 575602), (76, 287801)]