21297626

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{28703}}^1$

素因数の和:28765

約数の個数: 16

約数和(自身を含む): 37200384

約数和(自身を除く): 15902758

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 28703, 57406, 200921, 401842, 1521259, 3042518, 10648813, 21297626]

約数ペア:

[(1, 21297626), (2, 10648813), (7, 3042518), (14, 1521259), (53, 401842), (106, 200921), (371, 57406), (742, 28703)]