639122

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:182

約数の個数: 24

約数和(自身を含む): 1117200

約数和(自身を除く): 478078

約数列:

[1, 2, 11, 19, 22, 38, 121, 139, 209, 242, 278, 418, 1529, 2299, 2641, 3058, 4598, 5282, 16819, 29051, 33638, 58102, 319561, 639122]

約数ペア:

[(1, 639122), (2, 319561), (11, 58102), (19, 33638), (22, 29051), (38, 16819), (121, 5282), (139, 4598), (209, 3058), (242, 2641), (278, 2299), (418, 1529)]