21491492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{6691}}^1$

素因数の和:6779

約数の個数: 24

約数和(自身を含む): 41597472

約数和(自身を除く): 20105980

約数列:

[1, 2, 4, 11, 22, 44, 73, 146, 292, 803, 1606, 3212, 6691, 13382, 26764, 73601, 147202, 294404, 488443, 976886, 1953772, 5372873, 10745746, 21491492]

約数ペア:

[(1, 21491492), (2, 10745746), (4, 5372873), (11, 1953772), (22, 976886), (44, 488443), (73, 294404), (146, 147202), (292, 73601), (803, 26764), (1606, 13382), (3212, 6691)]