21513352

素因数分解:

$2^3\times 7^2\times {\mathrm{54881}}^1$

素因数の和:54901

約数の個数: 24

約数和(自身を含む): 46924110

約数和(自身を除く): 25410758

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54881, 109762, 219524, 384167, 439048, 768334, 1536668, 2689169, 3073336, 5378338, 10756676, 21513352]

約数ペア:

[(1, 21513352), (2, 10756676), (4, 5378338), (7, 3073336), (8, 2689169), (14, 1536668), (28, 768334), (49, 439048), (56, 384167), (98, 219524), (196, 109762), (392, 54881)]