21700563

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{1009}}^1$

素因数の和:1186

約数の個数: 16

約数和(自身を含む): 29669760

約数和(自身を除く): 7969197

約数列:

[1, 3, 67, 107, 201, 321, 1009, 3027, 7169, 21507, 67603, 107963, 202809, 323889, 7233521, 21700563]

約数ペア:

[(1, 21700563), (3, 7233521), (67, 323889), (107, 202809), (201, 107963), (321, 67603), (1009, 21507), (3027, 7169)]