19889097

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:712

約数の個数: 16

約数和(自身を含む): 27040320

約数和(自身を除く): 7151223

約数列:

[1, 3, 89, 163, 267, 457, 489, 1371, 14507, 40673, 43521, 74491, 122019, 223473, 6629699, 19889097]

約数ペア:

[(1, 19889097), (3, 6629699), (89, 223473), (163, 122019), (267, 74491), (457, 43521), (489, 40673), (1371, 14507)]