21164127

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1\times {\mathrm{457}}^1$

素因数の和:862

約数の個数: 16

約数和(自身を含む): 29018880

約数和(自身を除く): 7854753

約数列:

[1, 3, 43, 129, 359, 457, 1077, 1371, 15437, 19651, 46311, 58953, 164063, 492189, 7054709, 21164127]

約数ペア:

[(1, 21164127), (3, 7054709), (43, 492189), (129, 164063), (359, 58953), (457, 46311), (1077, 19651), (1371, 15437)]