21125826

素因数分解:

$2^1\times 3^3\times {\mathrm{391219}}^1$

素因数の和:391230

約数の個数: 16

約数和(自身を含む): 46946400

約数和(自身を除く): 25820574

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 391219, 782438, 1173657, 2347314, 3520971, 7041942, 10562913, 21125826]

約数ペア:

[(1, 21125826), (2, 10562913), (3, 7041942), (6, 3520971), (9, 2347314), (18, 1173657), (27, 782438), (54, 391219)]