16671417

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 28016640

約数和(自身を除く): 11345223

約数列:

[1, 3, 7, 19, 21, 47, 49, 57, 127, 133, 141, 147, 329, 381, 399, 889, 893, 931, 987, 2303, 2413, 2667, 2679, 2793, 5969, 6223, 6251, 6909, 7239, 16891, 17907, 18669, 18753, 41783, 43757, 50673, 113411, 118237, 125349, 131271, 292481, 340233, 354711, 793877, 877443, 2381631, 5557139, 16671417]

約数ペア:

[(1, 16671417), (3, 5557139), (7, 2381631), (19, 877443), (21, 793877), (47, 354711), (49, 340233), (57, 292481), (127, 131271), (133, 125349), (141, 118237), (147, 113411), (329, 50673), (381, 43757), (399, 41783), (889, 18753), (893, 18669), (931, 17907), (987, 16891), (2303, 7239), (2413, 6909), (2667, 6251), (2679, 6223), (2793, 5969)]