21981322

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{13687}}^1$

素因数の和:13773

約数の個数: 16

約数和(自身を含む): 36464832

約数和(自身を除く): 14483510

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 13687, 27374, 150557, 301114, 999151, 1998302, 10990661, 21981322]

約数ペア:

[(1, 21981322), (2, 10990661), (11, 1998302), (22, 999151), (73, 301114), (146, 150557), (803, 27374), (1606, 13687)]