21728540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37463}}^1$

素因数の和:37501

約数の個数: 24

約数和(自身を含む): 47204640

約数和(自身を除く): 25476100

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 37463, 74926, 149852, 187315, 374630, 749260, 1086427, 2172854, 4345708, 5432135, 10864270, 21728540]

約数ペア:

[(1, 21728540), (2, 10864270), (4, 5432135), (5, 4345708), (10, 2172854), (20, 1086427), (29, 749260), (58, 374630), (116, 187315), (145, 149852), (290, 74926), (580, 37463)]