21197476

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{739}}^1$

素因数の和:915

約数の個数: 24

約数和(自身を含む): 38041920

約数和(自身を除く): 16844444

約数列:

[1, 2, 4, 71, 101, 142, 202, 284, 404, 739, 1478, 2956, 7171, 14342, 28684, 52469, 74639, 104938, 149278, 209876, 298556, 5299369, 10598738, 21197476]

約数ペア:

[(1, 21197476), (2, 10598738), (4, 5299369), (71, 298556), (101, 209876), (142, 149278), (202, 104938), (284, 74639), (404, 52469), (739, 28684), (1478, 14342), (2956, 7171)]