2780379

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:376

約数の個数: 32

約数和(自身を含む): 4823040

約数和(自身を除く): 2042661

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 141, 189, 313, 329, 423, 939, 987, 1269, 2191, 2817, 2961, 6573, 8451, 8883, 14711, 19719, 44133, 59157, 102977, 132399, 308931, 397197, 926793, 2780379]

約数ペア:

[(1, 2780379), (3, 926793), (7, 397197), (9, 308931), (21, 132399), (27, 102977), (47, 59157), (63, 44133), (141, 19719), (189, 14711), (313, 8883), (329, 8451), (423, 6573), (939, 2961), (987, 2817), (1269, 2191)]