21620494

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21751}}^1$

素因数の和:21831

約数の個数: 16

約数和(自身を含む): 37587456

約数和(自身を除く): 15966962

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 21751, 43502, 152257, 304514, 1544321, 3088642, 10810247, 21620494]

約数ペア:

[(1, 21620494), (2, 10810247), (7, 3088642), (14, 1544321), (71, 304514), (142, 152257), (497, 43502), (994, 21751)]