21497462

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{11047}}^1$

素因数の和:11195

約数の個数: 16

約数和(自身を含む): 37121280

約数和(自身を除く): 15623818

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 11047, 22094, 77329, 154658, 1535533, 3071066, 10748731, 21497462]

約数ペア:

[(1, 21497462), (2, 10748731), (7, 3071066), (14, 1535533), (139, 154658), (278, 77329), (973, 22094), (1946, 11047)]