6990921

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{787}}^1$

素因数の和:850

約数の個数: 32

約数和(自身を含む): 12103680

約数和(自身を除く): 5112759

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 141, 189, 329, 423, 787, 987, 1269, 2361, 2961, 5509, 7083, 8883, 16527, 21249, 36989, 49581, 110967, 148743, 258923, 332901, 776769, 998703, 2330307, 6990921]

約数ペア:

[(1, 6990921), (3, 2330307), (7, 998703), (9, 776769), (21, 332901), (27, 258923), (47, 148743), (63, 110967), (141, 49581), (189, 36989), (329, 21249), (423, 16527), (787, 8883), (987, 7083), (1269, 5509), (2361, 2961)]