21997276

素因数分解:

$2^2\times 7^3\times {\mathrm{16033}}^1$

素因数の和:16058

約数の個数: 24

約数和(自身を含む): 44895200

約数和(自身を除く): 22897924

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 16033, 32066, 64132, 112231, 224462, 448924, 785617, 1571234, 3142468, 5499319, 10998638, 21997276]

約数ペア:

[(1, 21997276), (2, 10998638), (4, 5499319), (7, 3142468), (14, 1571234), (28, 785617), (49, 448924), (98, 224462), (196, 112231), (343, 64132), (686, 32066), (1372, 16033)]