21035512

素因数分解:

$2^3\times {\mathrm{1109}}^1\times {\mathrm{2371}}^1$

素因数の和:3486

約数の個数: 16

約数和(自身を含む): 39493800

約数和(自身を除く): 18458288

約数列:

[1, 2, 4, 8, 1109, 2218, 2371, 4436, 4742, 8872, 9484, 18968, 2629439, 5258878, 10517756, 21035512]

約数ペア:

[(1, 21035512), (2, 10517756), (4, 5258878), (8, 2629439), (1109, 18968), (2218, 9484), (2371, 8872), (4436, 4742)]