21697214

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{140891}}^1$

素因数の和:140911

約数の個数: 16

約数和(自身を含む): 40576896

約数和(自身を除く): 18879682

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 140891, 281782, 986237, 1549801, 1972474, 3099602, 10848607, 21697214]

約数ペア:

[(1, 21697214), (2, 10848607), (7, 3099602), (11, 1972474), (14, 1549801), (22, 986237), (77, 281782), (154, 140891)]