21167667020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9709939}}^1$

素因数の和:9710057

約数の個数: 24

約数和(自身を含む): 44859922800

約数和(自身を除く): 23692255780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 9709939, 19419878, 38839756, 48549695, 97099390, 194198780, 1058383351, 2116766702, 4233533404, 5291916755, 10583833510, 21167667020]

約数ペア:

[(1, 21167667020), (2, 10583833510), (4, 5291916755), (5, 4233533404), (10, 2116766702), (20, 1058383351), (109, 194198780), (218, 97099390), (436, 48549695), (545, 38839756), (1090, 19419878), (2180, 9709939)]