21028712

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{90641}}^1$

素因数の和:90676

約数の個数: 16

約数和(自身を含む): 40788900

約数和(自身を除く): 19760188

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 90641, 181282, 362564, 725128, 2628589, 5257178, 10514356, 21028712]

約数ペア:

[(1, 21028712), (2, 10514356), (4, 5257178), (8, 2628589), (29, 725128), (58, 362564), (116, 181282), (232, 90641)]