21473971

素因数分解:

${\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 23385600

約数和(自身を除く): 1911629

約数列:

[1, 19, 47, 139, 173, 893, 2641, 3287, 6533, 8131, 24047, 124127, 154489, 456893, 1130209, 21473971]

約数ペア:

[(1, 21473971), (19, 1130209), (47, 456893), (139, 154489), (173, 124127), (893, 24047), (2641, 8131), (3287, 6533)]