20988534

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1187}}^1$

素因数の和:1620

約数の個数: 32

約数和(自身を含む): 48128256

約数和(自身を除く): 27139722

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 421, 842, 1187, 1263, 2374, 2526, 2947, 3561, 5894, 7122, 8309, 8841, 16618, 17682, 24927, 49854, 499727, 999454, 1499181, 2998362, 3498089, 6996178, 10494267, 20988534]

約数ペア:

[(1, 20988534), (2, 10494267), (3, 6996178), (6, 3498089), (7, 2998362), (14, 1499181), (21, 999454), (42, 499727), (421, 49854), (842, 24927), (1187, 17682), (1263, 16618), (2374, 8841), (2526, 8309), (2947, 7122), (3561, 5894)]