21008536

素因数分解:

$2^3\times {\mathrm{1117}}^1\times {\mathrm{2351}}^1$

素因数の和:3474

約数の個数: 16

約数和(自身を含む): 39443040

約数和(自身を除く): 18434504

約数列:

[1, 2, 4, 8, 1117, 2234, 2351, 4468, 4702, 8936, 9404, 18808, 2626067, 5252134, 10504268, 21008536]

約数ペア:

[(1, 21008536), (2, 10504268), (4, 5252134), (8, 2626067), (1117, 18808), (2234, 9404), (2351, 8936), (4468, 4702)]