21547918

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66919}}^1$

素因数の和:66951

約数の個数: 16

約数和(自身を含む): 38545920

約数和(自身を除く): 16998002

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 66919, 133838, 468433, 936866, 1539137, 3078274, 10773959, 21547918]

約数ペア:

[(1, 21547918), (2, 10773959), (7, 3078274), (14, 1539137), (23, 936866), (46, 468433), (161, 133838), (322, 66919)]