21320453

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3793}}^1$

素因数の和:3884

約数の個数: 16

約数和(自身を含む): 26952576

約数和(自身を除く): 5632123

約数列:

[1, 7, 11, 73, 77, 511, 803, 3793, 5621, 26551, 41723, 276889, 292061, 1938223, 3045779, 21320453]

約数ペア:

[(1, 21320453), (7, 3045779), (11, 1938223), (73, 292061), (77, 276889), (511, 41723), (803, 26551), (3793, 5621)]