21004136

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64037}}^1$

素因数の和:64084

約数の個数: 16

約数和(自身を含む): 40343940

約数和(自身を除く): 19339804

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64037, 128074, 256148, 512296, 2625517, 5251034, 10502068, 21004136]

約数ペア:

[(1, 21004136), (2, 10502068), (4, 5251034), (8, 2625517), (41, 512296), (82, 256148), (164, 128074), (328, 64037)]