21247674

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{72271}}^1$

素因数の和:72290

約数の個数: 24

約数和(自身を含む): 49434048

約数和(自身を除く): 28186374

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72271, 144542, 216813, 433626, 505897, 1011794, 1517691, 3035382, 3541279, 7082558, 10623837, 21247674]

約数ペア:

[(1, 21247674), (2, 10623837), (3, 7082558), (6, 3541279), (7, 3035382), (14, 1517691), (21, 1011794), (42, 505897), (49, 433626), (98, 216813), (147, 144542), (294, 72271)]