21093044290

素因数分解:

$2^1\times 5^1\times {\mathrm{3947}}^1\times {\mathrm{534407}}^1$

素因数の和:538361

約数の個数: 16

約数和(自身を含む): 37977170112

約数和(自身を除く): 16884125822

約数列:

[1, 2, 5, 10, 3947, 7894, 19735, 39470, 534407, 1068814, 2672035, 5344070, 2109304429, 4218608858, 10546522145, 21093044290]

約数ペア:

[(1, 21093044290), (2, 10546522145), (5, 4218608858), (10, 2109304429), (3947, 5344070), (7894, 2672035), (19735, 1068814), (39470, 534407)]